Article: 325894 of rec.antiques.radio+phono From: Ken Subject: Re: Heathkit Power Supply References: <1131875353.547388.34130@f14g2000cwb.googlegroups.com> <7tJdf.7$rY5.4@fed1read04> Message-ID: Date: Sun, 13 Nov 2005 11:37:40 -0500 I'd like to see it, but my server can't get it. ????? Ken Bob in Phx wrote: > completely MAD!!!!!! Who ever is working on his is totally out of their > mind!!!! But it is amazing... > "retroteckh" wrote in message > news:1131875353.547388.34130@f14g2000cwb.googlegroups.com... > >> >>http://retrotech.ca/HeathkitPowSup.shtml/HeathKitpowSup.htm >> > > > Article: 325895 of rec.antiques.radio+phono From: goodguyy@webtv.net (Ken G.) Subject: Re: Whats on your bench lately ? Date: Sun, 13 Nov 2005 09:31:53 -0700 Message-ID: <29588-43776A79-611@storefull-3254.bay.webtv.net> References: Hay that webcam works pretty good on webtv ! i saw 3 changes . I have had several capacitors chewed in radios . One now has a coil all chewed up . Ya know if some of that wiring in that is undisturbed you dont have to repace it . Article: 325896 of rec.antiques.radio+phono From: "Sox_in_2006" References: <11nd9eub5ddpj78@corp.supernews.com> <1131855713.712314.133540@z14g2000cwz.googlegroups.com> Subject: Re: Latin Fast House Message-ID: Date: Sun, 13 Nov 2005 12:08:43 -0500 Clinton lied, no one died? Tell that to the families of the people from the Aspirin factory that he wagged the dog and bombed to get out of his felony. "SueB" wrote in message news:1131855713.712314.133540@z14g2000cwz.googlegroups.com... > WTF is this doing in alt.fashion? > > Sue > > "Clinton lied, but no one died." > Article: 325897 of rec.antiques.radio+phono From: goodguyy@webtv.net (Ken G.) Subject: Re: Refinishing Brass Date: Sun, 13 Nov 2005 10:32:00 -0700 Message-ID: <29588-43777890-680@storefull-3254.bay.webtv.net> References: <22430-43702E78-121@storefull-3333.bay.webtv.net> At least 3 times now i have been able to tone a brass piece with home made toner . The trick is to use a HVLP detail gun and adjust it way down so it puts out a fine mist . The results are stunning . I cannot tell how tough this finish is because i have to tested that . The coats go on pretty thin and of coarse each coat gets darker . I would be in favor of using poly on brass simply because its tougher . I have not tried to mix stain with poly . Article: 325898 of rec.antiques.radio+phono From: Jeffrey D Angus Subject: 1926 Homebrew radio.... Message-ID: Date: Sun, 13 Nov 2005 17:52:20 GMT Well, at least somebody bought that from Bill... I'll have some pictures posted in a week or two and a few "What's typical" questions about the design and tubes used. Are there functional solid state equivalents to the 01 for example? Jeff -- RESTRICTED AREA. Anyone intruding shall immediately become subject to the jurisdiction of military law. Intruders will be subject to lethal force, without warning, and on sight. USE OF DEADLY FORCE IS AUTHORIZED under the Internal Security Act of 1950. Article: 325899 of rec.antiques.radio+phono Message-ID: <43778D09.B26EF5F@optonline.net> From: Sal Brisindi Subject: Olympic tube portable radio Date: Sun, 13 Nov 2005 13:59:22 -0500 Has anyone ever seen a radio like this? This radio has a tube chassis but transistors plugged into the tube sockets. Looks like Olympic converted their tube portable into a transistor portable so they did not have to retool their assembly line. Click here for the photo. http://www.tuberadios.com/ebay/olympic.jpg This belongs to a friend of mine, I have to repair it. Regards, Sal Brisindi Article: 325900 of rec.antiques.radio+phono From: Ken Scharf Subject: Re: Olympic tube portable radio References: <43778D09.B26EF5F@optonline.net> Message-ID: Date: Sun, 13 Nov 2005 14:06:10 -0500 Sal Brisindi wrote: > Has anyone ever seen a radio like this? This radio has a tube chassis > but transistors plugged into the tube sockets. Looks like Olympic > converted their tube portable into a transistor portable so they did not > have to retool their assembly line. Click here for the photo. > http://www.tuberadios.com/ebay/olympic.jpg > > This belongs to a friend of mine, I have to repair it. > > Regards, > Sal Brisindi > The layout diagram shows standard transistor sockets, even though the radio is built with what looks like 8 pin submin tube sockets. 8 pin submini tubes had wire leads the same diameter as early transistor leads, so the submini sockets made good transistor sockets. Could be they had surplus of the tube sockets. Article: 325901 of rec.antiques.radio+phono Message-ID: <43779268.1E229D07@optonline.net> From: Sal Brisindi Subject: Re: Olympic tube portable radio References: <43778D09.B26EF5F@optonline.net> Date: Sun, 13 Nov 2005 14:22:16 -0500 7 pins but who's counting.. ;-). I bet Olympic used transistor sockets in their later production run, they figured why not use the old tube chassis to save money. I have to find the schematic for both the tube and transistor version to see the differences. How good can a 4 transistor radio be. What you can't see is a larger transistor mounted to the chassis for heat dissipation where the 3V4 would have plugged in on the right side of the chassis. Sal Brisindi Ken Scharf wrote: > Sal Brisindi wrote: > > Has anyone ever seen a radio like this? This radio has a tube chassis > > but transistors plugged into the tube sockets. Looks like Olympic > > converted their tube portable into a transistor portable so they did not > > have to retool their assembly line. Click here for the photo. > > http://www.tuberadios.com/ebay/olympic.jpg > > > > This belongs to a friend of mine, I have to repair it. > > > > Regards, > > Sal Brisindi > > > The layout diagram shows standard transistor sockets, even though > the radio is built with what looks like 8 pin submin tube sockets. > 8 pin submini tubes had wire leads the same diameter as early > transistor leads, so the submini sockets made good transistor > sockets. Could be they had surplus of the tube sockets. Article: 325902 of rec.antiques.radio+phono From: goodguyy@webtv.net (Ken G.) Subject: Re: Olympic tube portable radio Date: Sun, 13 Nov 2005 12:13:55 -0700 Message-ID: <29588-43779073-706@storefull-3254.bay.webtv.net> References: Yes i have .. wayyy back when i was a kid i saw very few though . Article: 325903 of rec.antiques.radio+phono From: goodguyy@webtv.net (Ken G.) Subject: Re: Refinishing Brass Date: Sun, 13 Nov 2005 12:16:11 -0700 Message-ID: <29590-437790FB-53@storefull-3254.bay.webtv.net> References: <492dneZLLNSaF-reRVn-hw@comcast.com> I forgot about those .. i try to avoid poly :-) but it may be good here Its probably to thick out of can to spray ? Article: 325904 of rec.antiques.radio+phono From: "jim menning" References: <11nd6tan9c1nf2b@corp.supernews.com> Subject: Re: " I THINK THE PAINT LOOKS COOL." Message-ID: Date: Sun, 13 Nov 2005 20:06:07 GMT "philo" wrote in message news:cLWdnRyewdOM4OreRVn-jQ@athenet.net... > > > even those who refinish their radios > generally destroy them in the process > as you can *always* tell they have been re-done. Like this one? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=6578590251 jim menning Article: 325905 of rec.antiques.radio+phono From: philsvintageradios Subject: Re: schematics needed Message-ID: References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> Date: Sun, 13 Nov 2005 20:16:56 GMT On Sun, 13 Nov 2005 11:04:34 GMT, "Luke Turner" wrote: > >"Jim Mueller" wrote in message news:pan.2005.11.13.05.43.51.188044@nospam.com... >> On Sat, 12 Nov 2005 17:58:33 +0000, Luke Turner wrote: >> >> > >> > "philo" wrote in message >> > news:pan.2005.11.12.11.28.42.13907@privacy.net... >> >> >> >> >> >> told by the previous owner that it was working up to a few years ago, >> >> > then their son took a valve out and it of course, stopped working. >> >> > It has a very good cabinet for its age, approximately 1920 or so, no >> > chips >> >> > or scratches on the veneer, it has a small half crescent moon type of >> > dial >> >> > approximately 5" across numbered 0 - 100 right to left. >> >> > I would like to get this radio going if possible and would appreciate >> > any >> >> > help with circuit diagram and the history of the N.K.T. radio. >> >> > Thanks >> >> > Luke >> >> > VK3ALV >> >> >> >> >> >> it would help if you could give a lot more info... >> >> and also include a link to a good photo of the chassis >> > >> > Sorry, this is all the info I can get, there is no other indication on the >> > cabinet or chassis as to where the radio is made nor is there any circuit >> > diagram that used to accompany every radio and was stuck on the cabinet >> > somewhere, it seems the previous owners didn't like that piece of paper and >> > took it off. >> > I had thought the radio was made in Denmark, but a search hasn't come up >> > with anything. >> > I don't really want to take the chassis out of the cabinet if possible, but >> > if nothing comes out of my request, then I will. >> > I thought maybe with the name, there would be someone who would remember the >> > brand and as it is in completely original condition, almost showroom quality >> > apart from water stains on the top from a flower vase, I am a bit adverse >> > to taking it apart. >> > Thanks for your reply. >> > >> > Luke >> >> Can you tell us the types of tubes that are still there? Many radios had >> "standard" tube line-ups and we could make an educated guess at the >> missing one. Knowing the tube types would also let us get a better idea >> of when it was made and maybe even where it was made (at least what part >> of the world). >> >> -- >> Jim Mueller wrongname@nospam.com >> >> To get my real email address, replace wrongname with eportiz. >> Then replace nospam with sacbeemail. > >Thanks Jim for your reply. >the valves are as follows. > >1 x "80" >1 x "36" aluminum can shielded >2 x "39" > 44 aluminum can shielded >1 x "38" >1 x unknown smaller valve about 4" high x 1" cant get it out of the socket to see >1 x empty socket, could be a "38" but not sure, >it is next to the socket with the "38" > >They are RCA Radiotron and Ken Rad valves > >I think the numbers are right as my eyes are not what I would like them to be > >Luke Just a wild guess, but could it be an emmerson? Luke, maybe you can find one that looks similar on the web and point us to the pic? Article: 325906 of rec.antiques.radio+phono Date: Sun, 13 Nov 2005 16:23:48 -0400 From: Bill Subject: Re: 1926 Homebrew radio.... References: Message-ID: <91118$4377a0d6$4232bd7b$11724@COQUI.NET> Jeffrey D Angus wrote: > > Are there functional solid state equivalents to the 01 for > example? I must have missed the beginning of this thread. Did you win that homebrew set I saw you bidding on? Nope, no SS equivalents. There are some little equivalent circuits but they are unique to the tube's position in the lineup. Here's and example. http://www.sparkbench.com/fet01a.jpg Have fun with the little feller. -Bill Article: 325907 of rec.antiques.radio+phono Date: Sun, 13 Nov 2005 16:43:01 -0400 From: Bill Subject: Re: Alignment clarification needed. References: <5583-43775A1D-405@storefull-3173.bay.webtv.net> Message-ID: Blacksmith wrote: > > Still a little confused. I'm getting that if the signal is correct on > the generator and the signal shows up at say 580 KC after adjusting > the trimmer for 1500 KC, then I should turn the padder screw until I > hear the signal while the dial is set at 600. > > Is that correct? > > But then rocking won't do anything because the signal will already be > strongest at 600 KC because I just made the signal move over to the > 600 mark on the dial. > > So what's the purpose in rocking while turning the screw. It seems to > me that when you rock the tuner you go back and forth across the > strongest part of the signal. Turning the padder screw when you've > rocked past the strongest part will just... I really don't know what > it will do. Seems like you would get the same effect by just going to > where the signal is strongest and turn the screw till it's stronger if > possible. > > Or is rocking it while turning the screw a way of making the signal > move across the dial to where you want it? > .... > Blacksmith I'm gonna get in trouble with the old-timers and book-larners here... The rocking routine is done with the concept that rf-to-osc tracking is more important than dial calibration and the latter is to be sacrificed if needs be. I personally opt for dial calibration and can't say I've ever felt that the RF/ant tracking was enough of an issue to justify screwing up the dial reading. -Bill Article: 325908 of rec.antiques.radio+phono From: philsvintageradios Subject: Re: Shellac Message-ID: References: <11ncukp1jit8d60@corp.supernews.com> Date: Sun, 13 Nov 2005 20:44:23 GMT >I followed advice often heard on the Forum to use degreased #000 >steel wool as a final prep of bare hardwood. No, you cannot see the >scratches later. I have been trying this liquid "wool lube" that i picked up a couple of weeks ago. I got from mowhawk. this stuff works great. it is like soap, and you add a little squirt of it to a saucer of water to dip the steel wool in now and then. it stops the little bits from going all over, and it prevents the wool from rusting. It helps stop the wool from being too abrasive and scratching. I am very impressed. Phil Article: 325909 of rec.antiques.radio+phono From: Ron in Radio Heaven Subject: old, cold sloder joints Message-ID: Date: Sun, 13 Nov 2005 21:26:54 GMT I have a question about old solder joints. I've heard that the new lead free solder will not hold up over the long term, but is it normal for old solder joints to get cold as they age? Working on the Clough-Brengle transmitter I've found a lot of really cold (loose) solder joints, where the wire that was soldered has just broken free of the solder. If the solder joints were this cold when it was built it could not have worked most of the loose joints are in the antenna coils and the plate cap leads to the final tubes. These look like original solder joints, they aren't any shiner that any of the others in the transmitter. Does anyone know what I can use to age new solder joints? I really don't want to have a bunch of shiny solder joints in this thing. 73, Ron http://radioheaven.homestead.com/CB87project.html Article: 325910 of rec.antiques.radio+phono From: "Luke Turner" References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> Subject: Re: schematics needed Message-ID: <%mOdf.16683$Hj2.4595@news-server.bigpond.net.au> Date: Sun, 13 Nov 2005 21:38:03 GMT "philo" wrote in message news:MI-dnVdoLu2C8ureRVn-sg@athenet.net... > > > 1 x "80" > > 1 x "36" aluminum can shielded > > 2 x "_39_" > > 44 aluminum can shielded > > 1 x "38" > > 1 x unknown smaller valve about 4" high x 1" cant get it out of the > > socket to see > > 1 x empty socket, could be a "38" but not sure, > > it is next to the socket with the "38" > > __ > > > the 38 and 39/44 are similar tubes > if the empty socket has a grid cap lying there unatteched > and is also 5 pin the missing tube could very well be a type 38 > > of course wait for others to reply before trying anything > or looking for a replacement I thought the same thing but as you say, I was waiting for a more expert opinion before embarking on that project although I didn't know those two valves were similar I emailed photos to you, if your email address is right Article: 325911 of rec.antiques.radio+phono From: " Uncle Peter" References: Subject: Re: old, cold sloder joints Message-ID: Date: Sun, 13 Nov 2005 17:01:10 -0500 The joints should be shiny to be good electrically. I think what you need is a method to "dull" the outward appearance of the solder joint-- a means to make it look aged. I wonder what chemical will give lead an aged patina? Peter Article: 325912 of rec.antiques.radio+phono From: Ken Subject: Re: old, cold sloder joints References: Message-ID: Date: Sun, 13 Nov 2005 17:04:51 -0500 I have seen some solder on old equipment crumble, while other joints close by are perfect. Must be age related. Ken Ron in Radio Heaven wrote: > I have a question about old solder joints. > I've heard that the new lead free solder will not hold up > over the long term, but is it normal for old solder > joints to get cold as they age? > Working on the Clough-Brengle transmitter I've found > a lot of really cold (loose) solder joints, where the wire > that was soldered has just broken free of the solder. > If the solder joints were this cold when it was built > it could not have worked most of the loose joints are > in the antenna coils and the plate cap leads to the final > tubes. These look like original solder joints, they aren't > any shiner that any of the others in the transmitter. > > Does anyone know what I can use to age new solder > joints? I really don't want to have a bunch of shiny > solder joints in this thing. > > 73, Ron > http://radioheaven.homestead.com/CB87project.html Article: 325913 of rec.antiques.radio+phono From: Ken Subject: Re: old, cold sloder joints References: Message-ID: Date: Sun, 13 Nov 2005 17:07:40 -0500 Someone knows, I've seen it on this ng. Ken Uncle Peter wrote: > The joints should be shiny to be good electrically. > > I think what you need is > a method to "dull" the outward appearance of the solder joint-- > a means to make it look aged. I wonder what chemical will > give lead an aged patina? > > Peter > > Article: 325914 of rec.antiques.radio+phono From: "Jim Barnard" Subject: Transistor Repair/History Website Date: Sun, 13 Nov 2005 17:28:40 -0500 Message-ID: After several years of repairing Zenith transistor radios, I opened an Internet storefront last Friday. In addition to my business solicitation, the site a good bit of history, a Zenith transistor cross-reference, an links to some in-depth Zenith transistor radio history, and transistor history. The website's name is www.transistor-repairs.com Those who enjoy these little radios, might want to have to look. Thanks. Jim Barnard Jim's Transistor Restorations Specializing in Zenth Transistor Radios Article: 325915 of rec.antiques.radio+phono From: "Steven Dinius_" References: <11nd9eub5ddpj78@corp.supernews.com> <1131855713.712314.133540@z14g2000cwz.googlegroups.com> Subject: Re: Latin Fast House Message-ID: <47Pdf.1958$ZA3.396701@monger.newsread.com> Date: Sun, 13 Nov 2005 22:29:20 GMT OK, it was fun and now I mark it ignore. "Sox_in_2006" wrote in message news:euKdf.22123$7s1.20924@fe04.lga... > Clinton lied, no one died? Tell that to the families of the people from the > Aspirin factory that he wagged the dog and bombed to get out of his felony. > > > "SueB" wrote in message > news:1131855713.712314.133540@z14g2000cwz.googlegroups.com... > > WTF is this doing in alt.fashion? > > > > Sue > > > > "Clinton lied, but no one died." > > > > Article: 325916 of rec.antiques.radio+phono From: "Steven Dinius_" References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> <%mOdf.16683$Hj2.4595@news-server.bigpond.net.au> Subject: Re: schematics needed Message-ID: Date: Sun, 13 Nov 2005 22:33:29 GMT It's not. "Luke Turner" wrote in message news:%mOdf.16683$Hj2.4595@news-server.bigpond.net.au... > > "philo" wrote in message > news:MI-dnVdoLu2C8ureRVn-sg@athenet.net... > > > > > 1 x "80" > > > 1 x "36" aluminum can shielded > > > 2 x "_39_" > > > 44 aluminum can shielded > > > 1 x "38" > > > 1 x unknown smaller valve about 4" high x 1" cant get it out of the > > > socket to see > > > 1 x empty socket, could be a "38" but not sure, > > > it is next to the socket with the "38" > > > __ > > > > > > the 38 and 39/44 are similar tubes > > if the empty socket has a grid cap lying there unatteched > > and is also 5 pin the missing tube could very well be a type 38 > > > > of course wait for others to reply before trying anything > > or looking for a replacement > > I thought the same thing but as you say, > I was waiting for a more expert opinion before embarking on that project > although I didn't know those two valves were similar > I emailed photos to you, if your email address is right > > Article: 325917 of rec.antiques.radio+phono Message-ID: <4377C17E.8B462E9@optonline.net> From: Sal Brisindi Subject: Re: Olympic tube portable radio References: <43778D09.B26EF5F@optonline.net> Date: Sun, 13 Nov 2005 17:43:11 -0500 I found this little neat website on the Olympic transistor radio. You can chek it out here. http://users.arczip.com/rmcgarra2/olympic.html Regards, Sal Sal Brisindi wrote: > Has anyone ever seen a radio like this? This radio has a tube chassis > but transistors plugged into the tube sockets. Looks like Olympic > converted their tube portable into a transistor portable so they did not > have to retool their assembly line. Click here for the photo. > http://www.tuberadios.com/ebay/olympic.jpg > > This belongs to a friend of mine, I have to repair it. > > Regards, > Sal Brisindi Article: 325918 of rec.antiques.radio+phono From: Hagstar Subject: Re: " I THINK THE PAINT LOOKS COOL." Date: Sun, 13 Nov 2005 17:49:49 -0500 Message-ID: <11nfgojlsv11ja7@corp.supernews.com> References: <11nd6tan9c1nf2b@corp.supernews.com> philo wrote: > > as you can *always* tell they have been re-done. NO, not mine :) John H. Article: 325919 of rec.antiques.radio+phono From: "Jon" References: <29588-43776A79-611@storefull-3254.bay.webtv.net> Subject: Re: Whats on your bench lately ? Message-ID: Date: Sun, 13 Nov 2005 22:54:14 GMT Unfortunately, much of the wiring that is undisturbed will have to move for me to get to some of the caps. I'm just going ahead and replacing each rubber wire one by one. I've found that most of the cloth covered wiring is in good shape, and I've only replace one of those so far. I've also found that there are some caps that were replaced along the way years ago, but don't match the original values. There are also some parallel caps to make up for parts that weren't on hand. Oddly, there are some Philco brand caps in places where they aren't on the diagram or parts list. Luckily I ordered extras. I'm going to trace those out on the schematic to see if they are there. This is a code 121 chassis, so it should match. This will be an interesting one. Jon "Ken G." wrote in message news:29588-43776A79-611@storefull-3254.bay.webtv.net... > Hay that webcam works pretty good on webtv ! i saw 3 changes . I have > had several capacitors chewed in radios . One now has a coil all chewed > up . > > Ya know if some of that wiring in that is undisturbed you dont have to > repace it . > Article: 325920 of rec.antiques.radio+phono From: donlk@webtv.net (Gridleak) Subject: Re: old, cold sloder joints Date: Sun, 13 Nov 2005 15:47:22 -0700 Message-ID: <20558-4377C27A-1037@storefull-3335.bay.webtv.net> References: Check out leaded glass places. They have a solution that turns the lead kames dark. DON AC7PD Article: 325921 of rec.antiques.radio+phono Message-ID: <4377c6de$0$11061$e4fe514c@news.xs4all.nl> From: maarten@panic.xx.tudelft.nl Subject: Re: old, cold sloder joints References: Date: 13 Nov 2005 23:06:06 GMT Ron in Radio Heaven wrote: > I have a question about old solder joints. > I've heard that the new lead free solder will not hold up > over the long term, but is it normal for old solder > joints to get cold as they age? > Working on the Clough-Brengle transmitter I've found > a lot of really cold (loose) solder joints, where the wire > that was soldered has just broken free of the solder. > If the solder joints were this cold when it was built > it could not have worked most of the loose joints are > in the antenna coils and the plate cap leads to the final > tubes. These look like original solder joints, they aren't > any shiner that any of the others in the transmitter. Solder joints can get 'cold' with age, especially when they are in a place that heats up and cools down regularly or is under mechanical stress. Also, there is a possibilty of oxidation of the wire itself. > Does anyone know what I can use to age new solder > joints? I really don't want to have a bunch of shiny > solder joints in this thing. I have been told leadfree solder will give dull joints. - Met vriendelijke groet, Maarten Bakker. Article: 325922 of rec.antiques.radio+phono From: Ron in Radio Heaven Subject: Re: Transistor Repair/History Website References: Message-ID: Date: Sun, 13 Nov 2005 23:13:24 GMT Jim Barnard wrote: > After several years of repairing Zenith transistor radios, Hay Jim, I like the photo on your home page of the 500H with the Blue ribbon from the Charlotte meet. That was a great program you did a few years ago. Hope to see ya again soon. 73, Ron Article: 325923 of rec.antiques.radio+phono Date: Sun, 13 Nov 2005 19:17:18 -0400 From: Bill Subject: Re: old, cold sloder joints References: Message-ID: Wet them down with acetone and a small brush. That will knock off the shine. -Bill Ken wrote: > Someone knows, I've seen it on this ng. Ken > > Uncle Peter wrote: > >> The joints should be shiny to be good electrically. >> >> I think what you need is >> a method to "dull" the outward appearance of the solder joint-- >> a means to make it look aged. I wonder what chemical will >> give lead an aged patina? >> >> Peter >> >> > Article: 325924 of rec.antiques.radio+phono Date: Sun, 13 Nov 2005 19:24:46 -0400 From: Bill Subject: Re: 1926 Homebrew radio.... References: <91118$4377a0d6$4232bd7b$11724@COQUI.NET> <1131917608.375163.144290@g43g2000cwa.googlegroups.com> Message-ID: <5cfc8$4377cb6c$4232bea1$19360@COQUI.NET> Jim Strickland wrote: > Bill wrote: > >>Jeffrey D Angus wrote: >> >>>Are there functional solid state equivalents to the 01 for >>>example? >> >> > > If memory serves, 30s are functionally equivalent save that they pull > something like 1/10 the filament current. They're also fairly readily > available. It would involve some kind of socket adapter or a change of > socket though. > > -Jim > No, a 30 will plug right in but you can count on losing rheostat control because of the low current. But nowadays the prices for 30s seems to be approaching that of 01As! 01As remain relatively inexpensive and very easy to find. That said, for a little 2 or 3 toob battery homebrew set with no particular heritage that needs preserving it makes much better sense to use a 30. Strong possibility thats what it used anyway. -Bill Article: 325925 of rec.antiques.radio+phono Message-ID: <4377CCA3.F60AC022@optonline.net> From: Sal Brisindi Subject: Re: Transistor Repair/History Website References: Date: Sun, 13 Nov 2005 18:30:43 -0500 Jim, Great website, great reading also on the Zenith radio history. Very informative. Regards, Sal Brisindi Jim Barnard wrote: > After several years of repairing Zenith transistor radios, I opened an > Internet storefront last Friday. In addition to my business solicitation, > the site a good bit of history, a Zenith transistor cross-reference, an > links to some in-depth Zenith transistor radio history, and transistor > history. The website's name is www.transistor-repairs.com > > Those who enjoy these little radios, might want to have to look. Thanks. > > Jim Barnard > Jim's Transistor Restorations > Specializing in Zenth Transistor Radios Article: 325926 of rec.antiques.radio+phono From: Ron in Radio Heaven Subject: Re: old, cold sloder joints References: <20558-4377C27A-1037@storefull-3335.bay.webtv.net> Message-ID: Date: Sun, 13 Nov 2005 23:03:59 GMT Gridleak wrote: > Check out leaded glass places. They have a solution that turns the lead > kames dark. > Don, that's a great idea, I give it a try. Ron Article: 325927 of rec.antiques.radio+phono From: "Steven Dinius_" References: Subject: Re: Transistor Repair/History Website Message-ID: Date: Sun, 13 Nov 2005 23:35:37 GMT Thank you for contributing this link. They are indeed fascinating sets especially for those such as I who would remove the backs and stare in wonder not knowing what all those things were or how they worked, and cursing privately that those 19 cent 9 volts that I could barely afford didn't quite ever make it to my next allowance (had to buy candy, stamp collecting supplies and Superman comics you know). "Jim Barnard" wrote in message news:dl8emj$poi$1@news3.infoave.net... > After several years of repairing Zenith transistor radios, I opened an > Internet storefront last Friday. In addition to my business solicitation, > the site a good bit of history, a Zenith transistor cross-reference, an > links to some in-depth Zenith transistor radio history, and transistor > history. The website's name is www.transistor-repairs.com > > Those who enjoy these little radios, might want to have to look. Thanks. > > Jim Barnard > Jim's Transistor Restorations > Specializing in Zenth Transistor Radios > > Article: 325928 of rec.antiques.radio+phono From: "Bill Morris" References: <43778D09.B26EF5F@optonline.net> Subject: Re: Olympic tube portable radio Date: Sun, 13 Nov 2005 19:01:45 -0500 Message-ID: <4377d3f0$0$14123$39cecf19@news.twtelecom.net> I have one myself. Also have the tube predecessor. "Sal Brisindi" wrote in message news:43778D09.B26EF5F@optonline.net... > Has anyone ever seen a radio like this? This radio has a tube chassis > but transistors plugged into the tube sockets. Looks like Olympic > converted their tube portable into a transistor portable so they did not > have to retool their assembly line. Click here for the photo. > http://www.tuberadios.com/ebay/olympic.jpg > > This belongs to a friend of mine, I have to repair it. > > Regards, > Sal Brisindi > Article: 325929 of rec.antiques.radio+phono Date: Sun, 13 Nov 2005 20:12:57 -0400 From: Bill Subject: Re: Olympic tube portable radio References: <43778D09.B26EF5F@optonline.net> <4377d3f0$0$14123$39cecf19@news.twtelecom.net> Message-ID: Thats hilarious! -Bill Bill Morris wrote: > I have one myself. Also have the tube predecessor. > > > "Sal Brisindi" wrote in message > news:43778D09.B26EF5F@optonline.net... > >>Has anyone ever seen a radio like this? This radio has a tube chassis >>but transistors plugged into the tube sockets. Looks like Olympic >>converted their tube portable into a transistor portable so they did not >>have to retool their assembly line. Click here for the photo. >>http://www.tuberadios.com/ebay/olympic.jpg >> >>This belongs to a friend of mine, I have to repair it. >> >>Regards, >>Sal Brisindi >> > > > From adouglasatgis.net Thu Nov 17 00:31:08 EST 2005 Article: 325930 of rec.antiques.radio+phono From: Alan Douglas Newsgroups: rec.antiques.radio+phono Subject: Re: UK / USA Tool Terminology Translator Date: Sun, 13 Nov 2005 19:01:30 -0500 Organization: http://newsguy.com Lines: 15 Message-ID: <9ekfn15co4e1ellqq4eir8m3ckbnv8fpu5@4ax.com> References: <8xJdf.1103$c27.580@newsread3.news.pas.earthlink.net> NNTP-Posting-Host: p-276.newsdawg.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Newsreader: Forte Free Agent 1.92/16.572 Path: news1.isis.unc.edu!canoe.uoregon.edu!hammer.uoregon.edu!logbridge.uoregon.edu!pln-e!spln!dex!extra.newsguy.com!newsp.newsguy.com!news4 Xref: news1.isis.unc.edu rec.antiques.radio+phono:325930 Hi, This could go on for a while. Araldite: epoxy (J B Weld is popular here though I've never used it) Ebonite: hard rubber RCA plug and phono plug are both used here. When you think about it, this may eventually be RCA's only permanent legacy. The trade name certainly isn't worth squat these days. I thought wander plugs were halfway between pin plugs (phone tips) and banana plugs in size, and had split pins. But don't quote me. Alan From adouglasatgis.net Thu Nov 17 00:31:08 EST 2005 Article: 325931 of rec.antiques.radio+phono From: Alan Douglas Newsgroups: rec.antiques.radio+phono Subject: Re: old, cold sloder joints Date: Sun, 13 Nov 2005 19:08:27 -0500 Organization: http://newsguy.com Lines: 4 Message-ID: <2alfn1dk3plug5j5defipsi75s92k35bc4@4ax.com> References: <20558-4377C27A-1037@storefull-3335.bay.webtv.net> NNTP-Posting-Host: p-924.newsdawg.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Newsreader: Forte Free Agent 1.92/16.572 Path: news1.isis.unc.edu!arclight.uoregon.edu!hammer.uoregon.edu!logbridge.uoregon.edu!pln-e!spln!lex!extra.newsguy.com!newsp.newsguy.com!news4 Xref: news1.isis.unc.edu rec.antiques.radio+phono:325931 Hi, Copper sulfate solution applied with an artist's brush. Alan Article: 325932 of rec.antiques.radio+phono From: Ron in Radio Heaven Subject: Re: CC-AWA Event Schedule References: <-9GdnTb8VNmUT-reRVn-ug@comcast.com> Message-ID: Date: Mon, 14 Nov 2005 00:12:23 GMT Mark Oppat wrote: > Ron, would you guys like me to do a seminar at Charlotte again? Mark, email me direct and let's talk about it. I think I can fit you into the schedule. A good repair talk would be great. Thanks for the offer. Ron Article: 325933 of rec.antiques.radio+phono From: "Martin Crossley" References: <18127-43701156-162@storefull-3172.bay.webtv.net> <437157b7$0$63054$ed2e19e4@ptn-nntp-reader04.plus.net> Subject: Re: Variable Regulated Tube Power Supplies. Date: Mon, 14 Nov 2005 00:17:56 -0000 Message-ID: <4377db3e$0$18855$ed2619ec@ptn-nntp-reader02.plus.net> "Steven Swift" wrote in message news:dl3dup$gq9$1@eskinews.eskimo.com... > "Martin Crossley" writes: >>>Sadly, most of those were hot chassis. > >>Negatory, good buddy. By and large, transformer operated color chasses >>were isolated from the AC line. >> In fact the 'hot chassis' practice was abandoned long >>before the advent of color TV sets. > > Oh no I didn't! > Almost all of the "small" color TV sets (19" down) were Hot-chassis. You > could get any number of filament strings by picking 300ma, 450ma, 600ma, > etc. line ups. Hence, all the funky tubes with prefixes like 13, 17, 33, > etc. Pretty much the only sets with transformers were console. > > Steve. > -- > Steven D. Swift, novatech@eskimo.com, http://www.novatech-instr.com > NOVATECH INSTRUMENTS, INC. P.O. Box 55997 > 206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA Article: 325934 of rec.antiques.radio+phono From: "Jim Barnard" Subject: Re: Transistor Repair/History Website Date: Sun, 13 Nov 2005 19:40:42 -0500 Message-ID: References: Ron: Thanks for your comments; I always enjoy talking about these little jewels. Jim "Ron in Radio Heaven" wrote in message news:oMPdf.300$q93.171493@twister.southeast.rr.com... > Jim Barnard wrote: >> After several years of repairing Zenith transistor radios, > > Hay Jim, I like the photo on your home page of the > 500H with the Blue ribbon from the Charlotte meet. > That was a great program you did a few years ago. > > Hope to see ya again soon. > > 73, Ron Article: 325935 of rec.antiques.radio+phono Message-ID: <4377DEA9.81039E6E@optonline.net> From: Sal Brisindi Subject: Re: Olympic tube portable radio References: <43778D09.B26EF5F@optonline.net> <4377d3f0$0$14123$39cecf19@news.twtelecom.net> Date: Sun, 13 Nov 2005 19:47:38 -0500 Bill, Wow, thats great, it makes me want to find both of them for my collection. Regards, Sal Bill Morris wrote: > I have one myself. Also have the tube predecessor. > Article: 325936 of rec.antiques.radio+phono From: "Jim Barnard" Subject: Re: Transistor Repair/History Website Date: Sun, 13 Nov 2005 20:16:13 -0500 Message-ID: References: <1131924693.890269.305120@g49g2000cwa.googlegroups.com> Michael: All the pix should be there now; thanks for calling this to my attention. Jim "michaeljpro" wrote in message news:1131924693.890269.305120@g49g2000cwa.googlegroups.com... > > Great site Jim, > I am a big fan of Zenith transistor radios having several of them in my > collection (including an early version of the handwired Royal 500). I > agree that the > 500H is perhaps the best sounding "pocket" radio. Quite sensitive and > nice tone. > I will bookmark your site and will visit again. > By the way, some of the pics didn't load, not sure if it's my > computer.... > let's see if it happens to anyone else. > > Michael. > Article: 325937 of rec.antiques.radio+phono From: Hagstar Subject: Re: Shellac Date: Sun, 13 Nov 2005 20:43:05 -0500 Message-ID: <11nfqtgcpj6stf0@corp.supernews.com> References: <11ncukp1jit8d60@corp.supernews.com> <1131928071.931213.82680@g44g2000cwa.googlegroups.com> pgonshor@aol.com wrote: > > Why would you put water soaked steel wool on wood? He said it was "like soap". Wool Lube is no doubt some sort of oil based product. Myself I use mineral spirits for rubbing. It reduces corning- potential scratchy lumps on the paper or wool. John H. Article: 325938 of rec.antiques.radio+phono From: goodguyy@webtv.net (Ken G.) Subject: Re: Transistor Repair/History Website Date: Sun, 13 Nov 2005 18:32:27 -0700 Message-ID: <16203-4377E92B-707@storefull-3253.bay.webtv.net> References: Hi Jim i also repair all sorts or transistor radios . Please note i can rebuild those round speakers from the 500 series . Article: 325939 of rec.antiques.radio+phono From: goodguyy@webtv.net (Ken G.) Subject: Re: old, cold sloder joints Date: Sun, 13 Nov 2005 18:39:25 -0700 Message-ID: <16204-4377EACD-195@storefull-3253.bay.webtv.net> References: <_hRdf.317$q93.180099@twister.southeast.rr.com> When i desire a more dull looking solder i will go ahead and make the usuall new solder joint then use a real fine wire brush to dull it down then sometimes after the brush rub my fingers on it . this does not darken , it removes the new shine . Article: 325940 of rec.antiques.radio+phono From: "jim menning" References: <11nd6tan9c1nf2b@corp.supernews.com> Subject: Re: " I THINK THE PAINT LOOKS COOL." Message-ID: Date: Mon, 14 Nov 2005 01:57:27 GMT "philo" wrote in message news:vMydnXE96MR3f-reRVn-pQ@athenet.net... > jim menning wrote: >> "philo" wrote in message >> news:cLWdnRyewdOM4OreRVn-jQ@athenet.net... >> >>> >>>even those who refinish their radios >>>generally destroy them in the process >>>as you can *always* tell they have been re-done. >> >> >> Like this one? >> >> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=6578590251 >> >> jim menning >> >> > well > from the picture it looks original Then your monitor is faulty. You can't see how blotchy the top is, the mismatched toning, and the ring of crud on the front 1/2 inch up from the bottom? jim menning Article: 325941 of rec.antiques.radio+phono From: "Steven Dinius_" References: <1131924693.890269.305120@g49g2000cwa.googlegroups.com> Subject: Re: Transistor Repair/History Website Message-ID: Date: Mon, 14 Nov 2005 01:58:44 GMT There is no picture of the lone 1965 set you feature and the link is disabled. "Jim Barnard" wrote in message news:dl8ogo$u83$1@news3.infoave.net... > Michael: > > All the pix should be there now; thanks for calling this to my attention. > > Jim > "michaeljpro" wrote in message > news:1131924693.890269.305120@g49g2000cwa.googlegroups.com... > > > > Great site Jim, > > I am a big fan of Zenith transistor radios having several of them in my > > collection (including an early version of the handwired Royal 500). I > > agree that the > > 500H is perhaps the best sounding "pocket" radio. Quite sensitive and > > nice tone. > > I will bookmark your site and will visit again. > > By the way, some of the pics didn't load, not sure if it's my > > computer.... > > let's see if it happens to anyone else. > > > > Michael. > > > > Article: 325942 of rec.antiques.radio+phono From: "Steven Dinius_" References: <18127-43701156-162@storefull-3172.bay.webtv.net> <437157b7$0$63054$ed2e19e4@ptn-nntp-reader04.plus.net> <4377db3e$0$18855$ed2619ec@ptn-nntp-reader02.plus.net> Subject: Re: Variable Regulated Tube Power Supplies. Message-ID: Date: Mon, 14 Nov 2005 02:00:42 GMT "Martin Crossley" wrote in message news:4377db3e$0$18855$ed2619ec@ptn-nntp-reader02.plus.net... > > "Steven Swift" wrote in message > news:dl3dup$gq9$1@eskinews.eskimo.com... > > "Martin Crossley" writes: > >>>Sadly, most of those were hot chassis. > > > >>Negatory, good buddy. By and large, transformer operated color chasses > >>were isolated from the AC line. > >> In fact the 'hot chassis' practice was abandoned long > >>before the advent of color TV sets. > > > > > > Oh no I didn't! You didn't what? Have you crossed threads? I'm not following your line. > > > Almost all of the "small" color TV sets (19" down) were Hot-chassis. You > > could get any number of filament strings by picking 300ma, 450ma, 600ma, > > etc. line ups. Hence, all the funky tubes with prefixes like 13, 17, 33, > > etc. Pretty much the only sets with transformers were console. > > > > Steve. > > -- > > Steven D. Swift, novatech@eskimo.com, http://www.novatech-instr.com > > NOVATECH INSTRUMENTS, INC. P.O. Box 55997 > > 206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA > > Article: 325943 of rec.antiques.radio+phono Date: Sun, 13 Nov 2005 22:03:35 -0400 From: Bill Subject: Re: " I THINK THE PAINT LOOKS COOL." References: <11nd6tan9c1nf2b@corp.supernews.com> Message-ID: <8e9f0$4377f078$4232bea1$28126@COQUI.NET> jim menning wrote: > > Then your monitor is faulty. You can't see how blotchy the top is, the mismatched > toning, and the ring of crud on the front 1/2 inch up from the bottom? > > jim menning > > What toning? I think it looks like a square pumpkin. -B Article: 325944 of rec.antiques.radio+phono From: "Steven Dinius_" References: <11nd6tan9c1nf2b@corp.supernews.com> Subject: Re: " I THINK THE PAINT LOOKS COOL." Message-ID: Date: Mon, 14 Nov 2005 02:04:09 GMT "jim menning" wrote in message news:baSdf.239$vq1.87@tornado.rdc-kc.rr.com... > > "philo" wrote in message > news:vMydnXE96MR3f-reRVn-pQ@athenet.net... > > jim menning wrote: > >> "philo" wrote in message > >> news:cLWdnRyewdOM4OreRVn-jQ@athenet.net... > >> > >>> > >>>even those who refinish their radios > >>>generally destroy them in the process > >>>as you can *always* tell they have been re-done. > >> > >> > >> Like this one? > >> > >> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=6578590251 > >> > >> jim menning > >> > >> > > well > > from the picture it looks original > > Then your monitor is faulty. You can't see how blotchy the top is, the mismatched > toning, and the ring of crud on the front 1/2 inch up from the bottom? > > jim menning Maybe his monitor needs caps. A couple WE tubes maybe. Seriously, does that set play? You can cure the mumps later. Article: 325945 of rec.antiques.radio+phono From: "Daniele" Subject: LAB: Voltmeter from milliammeter Message-ID: Date: Mon, 14 Nov 2005 02:15:42 GMT I'm going to place a big (one of the 600 i've got from automotive equipment) ammeter (1mA,27ohms) at the variac output. Max voltage should be 300V so a 300Kohm resistor is needed in series. How many Watts should be the resistor, half, 1, 2.... if the nominal output of the variac is rated at 4A? -- Daniele ^___^ http://www.tuberadio.it Article: 325946 of rec.antiques.radio+phono From: "jim menning" References: <11nd6tan9c1nf2b@corp.supernews.com> <8e9f0$4377f078$4232bea1$28126@COQUI.NET> Subject: Re: " I THINK THE PAINT LOOKS COOL." Message-ID: Date: Mon, 14 Nov 2005 02:16:38 GMT "Bill" wrote in message news:8e9f0$4377f078$4232bea1$28126@COQUI.NET... > jim menning wrote: > > >> >> Then your monitor is faulty. You can't see how blotchy the top is, the mismatched >> toning, and the ring of crud on the front 1/2 inch up from the bottom? >> >> jim menning > > What toning? > I think it looks like a square pumpkin. > > -B It's oranger than a '39 Philco console in direct sunlight! jim menning Article: 325947 of rec.antiques.radio+phono From: Randy or Sherry Guttery Subject: Re: national yard sale listings References: Message-ID: Date: Sun, 13 Nov 2005 20:16:55 -0600 Mark Oppat wrote: > this might be interesting... its some kind of national yard sale listings, > from newspaper ads I think... If you like "serious" yard sales - we hold one once a year... it's becoming a very large event (500+ miles). It's scheduled for May 18-21 2006... We're at the start. http://www.us11antiquealley.com/ Y'all come! best regards... -- randy guttery A Tender Tale - a page dedicated to those Ships and Crews so vital to the United States Silent Service: http://tendertale.com Article: 325948 of rec.antiques.radio+phono From: "jim menning" References: <18127-43701156-162@storefull-3172.bay.webtv.net> <437157b7$0$63054$ed2e19e4@ptn-nntp-reader04.plus.net> <4377db3e$0$18855$ed2619ec@ptn-nntp-reader02.plus.net> Subject: Re: Variable Regulated Tube Power Supplies. Message-ID: <_xSdf.243$vq1.43@tornado.rdc-kc.rr.com> Date: Mon, 14 Nov 2005 02:22:50 GMT "Martin Crossley" wrote in message news:4377db3e$0$18855$ed2619ec@ptn-nntp-reader02.plus.net... > > "Steven Swift" wrote in message > news:dl3dup$gq9$1@eskinews.eskimo.com... >> "Martin Crossley" writes: >>>>Sadly, most of those were hot chassis. >> >>>Negatory, good buddy. By and large, transformer operated color chasses >>>were isolated from the AC line. >>> In fact the 'hot chassis' practice was abandoned long >>>before the advent of color TV sets. >> >> > > Oh no I didn't! > Martin --- I think the confusion comes form your earlier post not correctly attributing prior quotes to the proper person. The post of Bill's that you replied to shows no tick marks or other signals differentiating Bill's words from your own words. jim menning Article: 325949 of rec.antiques.radio+phono From: Ken Subject: Re: LAB: Voltmeter from milliammeter References: Message-ID: Date: Sun, 13 Nov 2005 21:32:56 -0500 Since you're dropping 300v and only pulling 1ma through the resistor, a .5w should do. Ken Daniele wrote: > I'm going to place a big (one of the 600 i've got from > automotive equipment) ammeter (1mA,27ohms) at > the variac output. Max voltage should be 300V > so a 300Kohm resistor is needed in series. > How many Watts should be the resistor, half, 1, 2.... > if the nominal output of the variac is rated at 4A? > > -- > > Daniele ^___^ > http://www.tuberadio.it > > > Article: 325950 of rec.antiques.radio+phono From: Hagstar Subject: OT Remagnitizing Phono Magneto Date: Sun, 13 Nov 2005 22:10:10 -0500 Message-ID: <11ng00oo4sd0ec3@corp.supernews.com> I am restoring a Kellogg wood wall phone, and would like to make the generator functional again so the bells ring when guest crank it. The big horseshoe magnets have no magnetism, I'm guessing his is why I get 1 volt AC output . What's the best way to remagnetize them, wrap a few turns of wire about the middle and discharge say 1 farad of capacitor charged to 50 volts through it? Thanks, John H. Article: 325951 of rec.antiques.radio+phono From: "xrongor" Subject: Re: Heathkit Power Supply Date: Sun, 13 Nov 2005 21:16:42 -0700 Message-ID: References: <1131875353.547388.34130@f14g2000cwb.googlegroups.com> <7tJdf.7$rY5.4@fed1read04> ditto randy "Ken" wrote in message news:uZJdf.27180$2k5.11672@dukeread09... > I'd like to see it, but my server can't get it. ????? Ken > > Bob in Phx wrote: > >> completely MAD!!!!!! Who ever is working on his is totally out of their >> mind!!!! But it is amazing... >> "retroteckh" wrote in message >> news:1131875353.547388.34130@f14g2000cwb.googlegroups.com... >> >>> >>>http://retrotech.ca/HeathkitPowSup.shtml/HeathKitpowSup.htm >>> >> >> >> > > Article: 325952 of rec.antiques.radio+phono From: Jim Mueller Subject: Re: old, cold sloder joints Date: Sun, 13 Nov 2005 21:33:05 -0700 Message-ID: References: On Sun, 13 Nov 2005 21:26:54 +0000, Ron in Radio Heaven wrote: > I have a question about old solder joints. > I've heard that the new lead free solder will not hold up > over the long term, but is it normal for old solder > joints to get cold as they age? > Working on the Clough-Brengle transmitter I've found > a lot of really cold (loose) solder joints, where the wire > that was soldered has just broken free of the solder. > If the solder joints were this cold when it was built > it could not have worked most of the loose joints are > in the antenna coils and the plate cap leads to the final > tubes. These look like original solder joints, they aren't > any shiner that any of the others in the transmitter. > > Does anyone know what I can use to age new solder > joints? I really don't want to have a bunch of shiny > solder joints in this thing. > > 73, Ron > http://radioheaven.homestead.com/CB87project.html Maybe they used 50/50 solder instead of 60/40. Higher lead content makes the solder cheaper but it also makes it dull. Perhaps you can find some of that for your repairs. -- Jim Mueller wrongname@nospam.com To get my real email address, replace wrongname with eportiz. Then replace nospam with sacbeemail. Article: 325953 of rec.antiques.radio+phono From: "Frank Dresser" References: Subject: Re: old, cold sloder joints Message-ID: Date: Mon, 14 Nov 2005 04:40:14 GMT "Ron in Radio Heaven" wrote in message news:ycOdf.292$q93.164008@twister.southeast.rr.com... [snip] > > Does anyone know what I can use to age new solder > joints? I really don't want to have a bunch of shiny > solder joints in this thing. > > 73, Ron > http://radioheaven.homestead.com/CB87project.html I've heard guitar restorers have used Naval Jelly to hide thier repairs. Frank Dresser Article: 325954 of rec.antiques.radio+phono From: Jim Mueller Subject: Re: LAB: Voltmeter from milliammeter Date: Sun, 13 Nov 2005 21:40:12 -0700 Message-ID: References: On Mon, 14 Nov 2005 02:15:42 +0000, Daniele wrote: > I'm going to place a big (one of the 600 i've got from > automotive equipment) ammeter (1mA,27ohms) at > the variac output. Max voltage should be 300V > so a 300Kohm resistor is needed in series. > How many Watts should be the resistor, half, 1, 2.... > if the nominal output of the variac is rated at 4A? A variac has AC output. A meter from automotive equipment is likely to be DC. You will need a rectifier and will probably have to adjust the resistor value to get the calibration correct. -- Jim Mueller wrongname@nospam.com To get my real email address, replace wrongname with eportiz. Then replace nospam with sacbeemail. Article: 325955 of rec.antiques.radio+phono From: oldcoot@webtv.net (Bill Sheppard) Subject: Re: Variable Regulated Tube Power Supplies. Date: Sun, 13 Nov 2005 20:36:08 -0800 Message-ID: <20695-43781438-50@storefull-3177.bay.webtv.net> References: <_xSdf.243$vq1.43@tornado.rdc-kc.rr.com> Uh, sorry for the mixup, everybody. I was the culprit that said: >Negatory, good buddy. By and large, >transformer operated color chasses were >isolated from the AC line. >=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0In fact the 'hot >chassis' practice was abandoned long >before the advent of color TV sets. Possibly the confusion lies in the definition of "hot chassis", which on this side of the pond refers to one side of the line being connected *directly* to the chassis. That practice was abandoned in radios in the '40s, AFAIK. In transformerless TV sets however, the B+ doubler was powered from the line, with its negative pole tied to the chassis, This might be considered a 'half hot' chassis, or bona fide "hot chassis" in British parlance. Dunno for sure. Bill(oc) Article: 325956 of rec.antiques.radio+phono From: "Crazy George" References: Subject: Re: UK / USA Tool Terminology Translator Date: Sun, 13 Nov 2005 22:46:13 -0600 Message-ID: <43781a31_1@news1.prserv.net> "N Cook" wrote in message news:dl7aoc$jg3$1@inews.gazeta.pl... >I can never find a translation file for converting commonly used terms for > technical tools and equipment etc in the UK for the equivalent term used > in > the USA , me > > UK term : USA term > > banana plugs : ?, Hmmm, well.they are called banana plugs in the US. You have the term under UK, so I guess you are asking for the US version. As an addenda, the dual plugs with 3/4" or 19 mm spacing are often referred to as GR plugs, after the General Radio Co., who popularized their use on test equipment. Further, their pin diameter and spacing makes them exactly interchangeable with Continental European power sockets, and the steckers on German Enigma machines. Coincidence? -- Crazy George W5VPQ My real address is my ham call ARRL.NET The ATTGlobal is a SPAM trap. Article: 325957 of rec.antiques.radio+phono From: oldcoot@webtv.net (Bill Sheppard) Subject: Re: Variable Regulated Tube Power Supplies. Date: Sun, 13 Nov 2005 20:43:24 -0800 Message-ID: <20694-437815EC-366@storefull-3177.bay.webtv.net> References: <_xSdf.243$vq1.43@tornado.rdc-kc.rr.com> P.S. ARRGh. Aha (thumps forehead). British household AC is 230V is it not? That would explain transformerless TV sets being true "hot chassis". Yea or nay? oc Article: 325958 of rec.antiques.radio+phono From: "xrongor" Subject: Re: old, cold sloder joints Date: Sun, 13 Nov 2005 22:09:58 -0700 Message-ID: References: this thread makes me wonder. when does a 'well hidden repair' become a 'forgery'? randy > I've heard guitar restorers have used Naval Jelly to hide thier repairs. > > Frank Dresser > > Article: 325959 of rec.antiques.radio+phono From: Gordon Richmond Subject: Re: Touch Based Antenna Message-ID: <739gn15fs5i05nu75epg7sb5ssp7kbikoh@4ax.com> References: <1131941022.205288.258450@z14g2000cwz.googlegroups.com> Date: Mon, 14 Nov 2005 06:03:34 GMT Gary, I think those would be the grid caps on those RF tubes. Plate connection is on the base. If touching an antenna wire to a grid cap makes the signal come in strong, chances are THAT tube is functioning fine. but maybe the one upstream is dead. I'd be looking at an open antenna coil or interstage transformer? Gordon Richmond Article: 325960 of rec.antiques.radio+phono From: donlk@webtv.net (Gridleak) Subject: Re: old, cold sloder joints Date: Sun, 13 Nov 2005 22:50:49 -0700 Message-ID: <936-437825B9-144@storefull-3332.bay.webtv.net> References: Copper sulfate is available in most hardware stores. It is used to kill roots in your sewer system. There are probably other compounds used to destroy roots so ask for Roto Rooter Root Destroyer and check the ingredient. Should say 99% copper sulfate. DON AC7PD Article: 325961 of rec.antiques.radio+phono From: "Steven Dinius_" References: Subject: Re: old, cold sloder joints Message-ID: <4UVdf.1985$ZA3.401555@monger.newsread.com> Date: Mon, 14 Nov 2005 06:11:12 GMT Solder joints don't qualify for that kind of questioning. They are always necessary and to 'age' them and make the set look 'congruent' if asked for is a good thing. Stuffing components with more modern parts is justifiable also if that is the only method to preserve the original decorum. We cannot expect to find working 1929 parts every day. "xrongor" wrote in message news:dl964h$149s$1@news3.infoave.net... > this thread makes me wonder. when does a 'well hidden repair' become a > 'forgery'? > > randy > > > I've heard guitar restorers have used Naval Jelly to hide thier repairs. > > > > Frank Dresser > > > > > > Article: 325962 of rec.antiques.radio+phono From: "Scott W. Harvey" Subject: Re: UK / USA Tool Terminology Translator Date: Sun, 13 Nov 2005 22:10:47 -0800 Message-ID: References: <8xJdf.1103$c27.580@newsread3.news.pas.earthlink.net> <9ekfn15co4e1ellqq4eir8m3ckbnv8fpu5@4ax.com> Alan Douglas wrote: > Hi, > This could go on for a while. > > Araldite: epoxy (J B Weld is popular here though I've never used it) > Araldite is the name of a particular type of epoxy that is apprently sold only in the UK. Set time is very slow but the stuff is unbelievably strong, even by epoxy standards. -Scott Article: 325963 of rec.antiques.radio+phono From: "Scott W. Harvey" Subject: Re: UK / USA Tool Terminology Translator Date: Sun, 13 Nov 2005 22:17:07 -0800 Message-ID: References: N Cook wrote: > I can never find a translation file for converting commonly used terms for > technical tools and equipment etc in the UK for the equivalent term used in > the USA , > or vice versa, often involves trade names. Suggest you hang out in sci.electronics.repair for awhile. A fair number of posters there come from the UK and every once in awhile you will encounter a purely british term used in a context that makes divining its USA equivalent fairly easy. -Scott Article: 325964 of rec.antiques.radio+phono From: "Omer Suleimanagich" Subject: Variocoupler Message-ID: <8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net> Date: Mon, 14 Nov 2005 08:22:28 GMT Could someone tell me what a Variocoupler is? http://cgi.ebay.com/1920-s-Variocoupler_W0QQitemZ6578464133QQcategoryZ932QQssPageNameZWDVWQQrdZ1QQcmdZViewItem Article: 325965 of rec.antiques.radio+phono From: "xrongor" Subject: Re: Variocoupler Date: Mon, 14 Nov 2005 02:01:38 -0700 Message-ID: References: <8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net> looks to me like its basically a transformer where you can move the inner core a bit to make adjustments... just a guess... randy "Omer Suleimanagich" wrote in message news:8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net... > Could someone tell me what a Variocoupler is? > > http://cgi.ebay.com/1920-s-Variocoupler_W0QQitemZ6578464133QQcategoryZ932QQssPageNameZWDVWQQrdZ1QQcmdZViewItem > Article: 325966 of rec.antiques.radio+phono From: "Brenda Ann" Subject: Re: Variocoupler Date: Mon, 14 Nov 2005 18:09:01 +0900 Message-ID: References: <8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net> "Omer Suleimanagich" wrote in message news:8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net... > Could someone tell me what a Variocoupler is? > > http://cgi.ebay.com/1920-s-Variocoupler_W0QQitemZ6578464133QQcategoryZ932QQssPageNameZWDVWQQrdZ1QQcmdZViewItem > This little beauty allows you to change the amount of coupling in an antenna (or other) circuit within a TRF radio or crystal set. This is done to allow for the best impedance match between the antenna and the input of the next circuit, or, alternatively, as a gain setting device for a stage. Article: 325967 of rec.antiques.radio+phono From: "Steven Dinius_" References: <8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net> Subject: Re: Variocoupler Message-ID: <5SYdf.1987$ZA3.402684@monger.newsread.com> Date: Mon, 14 Nov 2005 09:33:53 GMT "Brenda Ann" wrote in message news:dl9kqb$sdp$1@news2.kornet.net... > > "Omer Suleimanagich" wrote in message > news:8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net... > > Could someone tell me what a Variocoupler is? > > > > http://cgi.ebay.com/1920-s-Variocoupler_W0QQitemZ6578464133QQcategoryZ932QQssPageNameZWDVWQQrdZ1QQcmdZViewItem > > > > This little beauty allows you to change the amount of coupling in an antenna > (or other) circuit within a TRF radio or crystal set. This is done to allow > for the best impedance match between the antenna and the input of the next > circuit, or, alternatively, as a gain setting device for a stage. A very GOOD little beast if it works right I'd gather : ) Article: 325968 of rec.antiques.radio+phono From: "Steven Dinius_" References: <11ng00oo4sd0ec3@corp.supernews.com> <1131952932.305462.259900@z14g2000cwz.googlegroups.com> Subject: Re: OT Remagnitizing Phono Magneto Message-ID: <2Q_df.1988$ZA3.403193@monger.newsread.com> Date: Mon, 14 Nov 2005 11:48:14 GMT Why don't you pose that question to someone like the people at Great Plains Audio who remagnitize AlNiCo magnets for many of the James B. Lansing associated products, or the Lansing Heritage boards at www.audioheritage.org where you can also link to GP? "William Sommerwerck" wrote in message news:GM2dnfdPCbNx6eXeRVn-oA@comcast.com... > > Better to wrap about 10-20 turns of house wire around one LEG > > and flash that on a car battery [flash = 1-2 seconds contact]. > > Question... Shouldn't you remove the magnet from the coil before > disconnecting the latter from the battery? The collapsing field would > partially demagnetize the magnet. > > From adouglasatgis.net Thu Nov 17 00:31:16 EST 2005 Article: 325969 of rec.antiques.radio+phono From: Alan Douglas Newsgroups: rec.antiques.radio+phono Subject: Re: old, cold sloder joints Date: Mon, 14 Nov 2005 06:34:50 -0500 Organization: http://newsguy.com Lines: 13 Message-ID: References: <936-437825B9-144@storefull-3332.bay.webtv.net> NNTP-Posting-Host: p-102.newsdawg.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Newsreader: Forte Free Agent 1.92/16.572 Path: news1.isis.unc.edu!canoe.uoregon.edu!newshub.sdsu.edu!logbridge.uoregon.edu!pln-w!spln!lex!extra.newsguy.com!newsp.newsguy.com!news1 Xref: news1.isis.unc.edu rec.antiques.radio+phono:325969 Hi, >Copper sulfate is available in most hardware stores. It is used to kill >roots in your sewer system. There are probably other compounds used to >destroy roots so ask for Roto Rooter Root Destroyer and check the >ingredient. Should say 99% copper sulfate. I think it's used to treat swimming-pool water too. II used to buy it at the drug store when I was a kid (it grows lovely blue crystals, and "copper-plates" iron nails dipped in it). You only need a tiny amount for your purpose. Alan Article: 325970 of rec.antiques.radio+phono From: goodguyy@webtv.net (Ken G.) Subject: Re: old, cold sloder joints Date: Mon, 14 Nov 2005 06:39:57 -0700 Message-ID: <25938-437893AD-246@storefull-3252.bay.webtv.net> References: <1131973429.733933.201880@o13g2000cwo.googlegroups.com> this thread makes me wonder. when does a 'well hidden repair' become a 'forgery'? It reminds me of repairing speaker cones . There are 75 ways :-) Article: 325971 of rec.antiques.radio+phono From: Rick Dasher Subject: Tube shield plating for Philco 38-3 Message-ID: <4n5hn1lc94or49nj81uer73rjs9ghf6ar0@4ax.com> Date: Mon, 14 Nov 2005 08:54:44 -0500 I am restoring a Philco 38-3 and the tube shields have the remains of a silver colored plating. I would like to replate them but with the correct plating. What kind of plating is this (nickel, chrome...)? Rick Dasher Zenith G500 TO Zenith 11S474 Philco 38-3 Philco 41-280 RCA 111K Article: 325972 of rec.antiques.radio+phono From: Northe Osbrink Subject: Re: Whats on your bench lately ? References: <11203-4371FEFA-7@storefull-3258.bay.webtv.net> <2fa1a$437353c0$4232bd4c$14908@COQUI.NET> Message-ID: <9K1ef.1348$s14.245@newsread2.news.pas.earthlink.net> Date: Mon, 14 Nov 2005 15:06:45 GMT Bill, >>> >> New HB regen shortwave receiver in the works here. > > I had been working on a picture 'blog' for this project and have now > posted it at http://www.sparkbench.com/homebrew/AcornSet/acorn.html > -Bill I can't remember any of the details, but the first first receiver that I built to receive FM broadcasts (probably before 1960)was a 955 in a superregenerative circuit. I also used it to receive aircraft and 2-meter amateurs. On strong stations it worked great, on weaker signals it was pretty squirrelly. I think the 955s and 958s were something like 5 for a dollar at one of the surplus stores. Northe N6KO Article: 325973 of rec.antiques.radio+phono From: "Steve" References: <1131980661.287770.231860@f14g2000cwb.googlegroups.com> Subject: Re: Positive ground auto radios Date: Mon, 14 Nov 2005 07:36:29 -0800 Message-ID: <4378aef7$0$75846$742ec2ed@news.sonic.net> I don't think there is any advantage or disadvantage one way or another. Besides collecting old radios, I also have a modest collection of MG's and Austin-Healeys (pos ground). Positive ground is just a 'standard', much like driving on the left side of the road. Gotta love the Brits! ;-) Converting a positive ground car to negative ground is usually easy. Re-polarizing the generator, and swapping the leads on the gas gauge, and you're done. Steve wagil wrote in message news:1131980661.287770.231860@f14g2000cwb.googlegroups.com... > Does anyone have any coments/thoughts/opinions about why some auto > makers had a positive ground electrical system and what the merits of a > pos ground system. Also--how this affected their auto radios. It > seems as tho the radio wouldn't care which was ground, but maybe > someone has some insight about this? > > Thanks for your help and comments > > Wayne > Article: 325974 of rec.antiques.radio+phono From: "Allan" References: <1131980661.287770.231860@f14g2000cwb.googlegroups.com> Subject: Re: Positive ground auto radios Message-ID: Date: Mon, 14 Nov 2005 10:49:07 -0500 I believe it was used as an attempt to reduce corrosion but was found to be ineffective. By this time, most other auto manufacturers were using negative ground. Allan "wagil" wrote in message news:1131980661.287770.231860@f14g2000cwb.googlegroups.com... > Does anyone have any coments/thoughts/opinions about why some auto > makers had a positive ground electrical system and what the merits of a > pos ground system. Also--how this affected their auto radios. It > seems as tho the radio wouldn't care which was ground, but maybe > someone has some insight about this? > > Thanks for your help and comments > > Wayne > Article: 325975 of rec.antiques.radio+phono From: Hagstar Subject: Re: OT Remagnitizing Phono Magneto Date: Mon, 14 Nov 2005 10:54:24 -0500 Message-ID: <11nhcpr7m7e0ve2@corp.supernews.com> References: <11ng00oo4sd0ec3@corp.supernews.com> <1131952932.305462.259900@z14g2000cwz.googlegroups.com> nesesu wrote: > Better to wrap about 10-20 turns of house wire around one LEG and flash > that on a car battery [flash = 1-2 seconds contact]. Much as one had to > flash the field on an automotive generator in the 'old' days. > > Also, the output should be about 90V @ 20Hz. > > That did it! I wrapped 16 turns around all the magnets everything was still all assembled. After flashing a few times (and cutting off the melted together coil) I have 90-100 volts AC. Thanks! John H. Article: 325976 of rec.antiques.radio+phono From: oldcoot@webtv.net (Bill Sheppard) Subject: Re: Positive ground auto radios Date: Mon, 14 Nov 2005 07:59:31 -0800 Message-ID: <25567-4378B463-632@storefull-3172.bay.webtv.net> References: <4378aef7$0$75846$742ec2ed@news.sonic.net> Wayne, Dunno about the "why" of positive ground other than it seemed to be purely convention at one time. But you're right - an auto radio with a tube rectifier is insensitive to polarity. It'll even run on AC, albeit with a rather squirrly 'beat' between the line freq. and the vibrator. A synchronous rectifier (second set of points in the vibrator) *is* polarity sensitive. To change polarity, you just have to reverse the two HV secondary leads (the ones that would ordinarily go to the rectifier plates). Bill(oc) Article: 325977 of rec.antiques.radio+phono From: Northe Osbrink Subject: Re: Variocoupler References: <8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net> Message-ID: Date: Mon, 14 Nov 2005 16:10:59 GMT Brenda Ann, Brenda Ann wrote: > "Omer Suleimanagich" wrote in message > news:8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net... > >>Could someone tell me what a Variocoupler is? > > This little beauty allows you to change the amount of coupling in an antenna > (or other) circuit within a TRF radio or crystal set. This is done to allow > for the best impedance match between the antenna and the input of the next > circuit, or, alternatively, as a gain setting device for a stage. > A variocoupler can also be used to provide continuously-variable coupling between the tuning coil and tickler in a regenerative circuit. If you connect the two coils in series, with the rotating coil connected in reverse, you wind up with a _variometer_, which results in an RF coil with continuously-variable inductance. Northe, N6KO Article: 325978 of rec.antiques.radio+phono From: "Paul P" References: <1131875639.986956.108830@g44g2000cwa.googlegroups.com> Subject: Re: Heathkit Power Supply Message-ID: Date: Mon, 14 Nov 2005 16:44:16 GMT Well....I'm impressed! PP "retroteckh" wrote in message news:1131875639.986956.108830@g44g2000cwa.googlegroups.com... > > > http://retrotech.ca//HeathkitPowSup.shtm/HeathKitpowSup.htm > Article: 325979 of rec.antiques.radio+phono From: "Paul P" Subject: Drake TR-4 Restoration question. Message-ID: Date: Mon, 14 Nov 2005 17:06:18 GMT Gents, I have acquired a Drake TR4 with power supply that track accurately on 80, 40, 20, 15 meters. The dial on the three 10 meter bands indicates about 30khz higher than actual. I have tried to adjust the touchy L2 accurately, looked at T1 for problems and swapped V1 tube. There are no cracked ferrite cores. Other hams on the air have told me this is typical of this TR-4 gear on 10 meters. Is there a component or gimmick that would bring the 10m tracking back on? Does having the 6JB8 PAs screen and plate B+ disconnected affect the 10m band in this way (I would think not)? What am I overlooking? Thanks, Paul. Article: 325980 of rec.antiques.radio+phono From: "Buck" References: <11nd9eub5ddpj78@corp.supernews.com> <1131855713.712314.133540@z14g2000cwz.googlegroups.com> Subject: Re: Latin Fast House Message-ID: <2x3ef.27108$6e1.2033@newssvr14.news.prodigy.com> Date: Mon, 14 Nov 2005 17:09:18 GMT You are an idiot. PLONK!! "SueB" wrote in message news:1131855713.712314.133540@z14g2000cwz.googlegroups.com... > WTF is this doing in alt.fashion? > > Sue > > "Clinton lied, but no one died." > Article: 325981 of rec.antiques.radio+phono From: "Steven Dinius_" References: Subject: Re: Drake TR-4 Restoration question. Message-ID: Date: Mon, 14 Nov 2005 17:41:58 GMT "Paul P" wrote in message news:eu3ef.54844$qk4.41195@bgtnsc05-news.ops.worldnet.att.net... > Gents, > > I have acquired a Drake TR4 with power supply that track accurately on 80, > 40, 20, 15 meters. The dial on the three 10 meter bands indicates about > 30khz higher than actual. I have tried to adjust the touchy L2 accurately, > looked at T1 for problems and swapped V1 tube. There are no cracked ferrite > cores. Other hams on the air have told me this is typical of this TR-4 gear > on 10 meters. > > Is there a component or gimmick that would bring the 10m tracking back on? > Does having the 6JB8 PAs screen and plate B+ disconnected affect the 10m > band in this way (I would think not)? > > What am I overlooking? > > Thanks, > Paul. Paul, While I'm not an amateur, I've heard many opinions and such about various pieces of Drake equipment, this way and that. My summary of all these opinions is that it tends to be pretty good but has a couple series or features that you should wonder about. Of course, that would be generic I suppose, but I do remember that even with highly stable gear in his base unit (he ran a Yaesu in his car), my uncle always used a good frequency counter nearby. I do not recall the make of his base unit, but I do recall it was a round dial in a square window and light blue. Why you have an anomaly like that at a higher frequency in your bandspread is nothing I'd know unless you have multiple bands like a comm receiver, which I might doubt but then you can analyze the section for that IF independently maybe. If you have a vernier dial and/or continuous tuning and all else is OK, you could always suspect it was not marked well on the dial vs. actual tuning. That brings back the counter scheme again, yes I know. Good luck although it may end up being something to adapt in the end, which in your case may not be a bad thing at all with your requirements (much more critical than an AA-5). (If this is someone elses I guess you can disavow all knowledge and it will self-destruct)...; ) Article: 325982 of rec.antiques.radio+phono From: "Albert Aerts" Subject: Website Update Date: Mon, 14 Nov 2005 19:08:00 +0100 Message-ID: <4378d27c$0$10961$ba620e4c@news.skynet.be> The "Aerts Family" homepage, featuring amateur radio, antique radios, antique cameras, Scotland, food, has been updated. Several links were added to the Antique Radio pages. www.aerts.nu Enjoy the browsing ! Article: 325983 of rec.antiques.radio+phono From: "Gary Tayman" References: <1131980661.287770.231860@f14g2000cwb.googlegroups.com> <1131990111.429071.189280@g49g2000cwa.googlegroups.com> Subject: Re: Positive ground auto radios Message-ID: Date: Mon, 14 Nov 2005 18:16:54 GMT While it's true that most tube type radios will operate with either polarity, that may not be true of these radios today. If you replace the vibrator, the new ones are solid state and will not work if the polarity is reversed. Kids, keep this in mind if you try this at home. -- Gary E. Tayman/Tayman Electrical Sound Solutions For Classic Cars http://www.taymanelectrical.com "nesesu" wrote in message news:1131990111.429071.189280@g49g2000cwa.googlegroups.com... > Wayne, we went into that in automotive class in High school back in > about 1958-9 and it was supposed that it would provide a better spark. > However, the winding 'sense' of the spark coil would provide the same > effect, especially since the spark is an oscillitory wave anyway. > > As mentioned by other posters, on a set with rectifier tube no > difference. On a set with synchronous vibrator you must reverse the > secondary connection to the vibrator. On many 'after market' radios of > the period, the vibrator and socket were arranged so that the vibrator > could be pulled and rotated 180 degrees and plugged back in to reverse > the polarity and a + or - appeared in a hole in the case next to a > label saying "Ground Polarity". > > We used to get lots of synchronous sets in the radio-TV shop with > reverse polarity damage. People [or garages] would do reverse jumps, > install the battery backwards, swap the radio from a Pos ground car to > neg ground and so on. > > Neil S. > Article: 325984 of rec.antiques.radio+phono From: "Gary Tayman" Subject: Delco DS-501 problem Message-ID: Date: Mon, 14 Nov 2005 18:42:37 GMT If any of you have ever messed with car radios, you'll know that Delco radios used a DS-501 power transistor for nearly every radio, from the first hybrids right on up into the 1970's. These germanium transistor didn't fail often, which i probably why replacements are scarce today. In fact the books I have show replacements as either an SK-3012 or a GE-4. ECG doesn't have a cross-reference. These things can be expensive, if you can find them at all. So -- right now I have a Corvette radio with no sound, and what appears to be a DS-501 that's bad. Now -- I happen to have a cigar box full of new power transistors that are that distinctive size and shape of the DS-501. However I can't seem to determine what they are to see if they cross-reference. Some of them are gold colored and have "108 6507" on them, others are silver and say "466 108 6621", and still others are gold and say "049 6222." Can anyone identify these transistors and tell me if they would make a compatible substitute for a DS-501? Of course if they can't be identified, I may try and stick one in just to see what happens . .. . -- Gary E. Tayman/Tayman Electrical Sound Solutions For Classic Cars http://www.taymanelectrical.com Article: 325985 of rec.antiques.radio+phono From: "Steven Dinius_" References: Subject: Re: Delco DS-501 problem Message-ID: <525ef.2004$ZA3.407900@monger.newsread.com> Date: Mon, 14 Nov 2005 18:52:49 GMT Gary, you are a service person. Delco/Delphi will send you info a lot easier than it was when I needed books on the AM stereo equipped 2000 series models I have...? Go through the parts site at GM or ask a dealer for leads...worth a shot though maybe you did that already? "Gary Tayman" wrote in message news:xU4ef.1669$c27.375@newsread3.news.pas.earthlink.net... > If any of you have ever messed with car radios, you'll know that Delco > radios used a DS-501 power transistor for nearly every radio, from the first > hybrids right on up into the 1970's. These germanium transistor didn't fail > often, which i probably why replacements are scarce today. In fact the > books I have show replacements as either an SK-3012 or a GE-4. ECG doesn't > have a cross-reference. These things can be expensive, if you can find them > at all. > > So -- right now I have a Corvette radio with no sound, and what appears to > be a DS-501 that's bad. Now -- I happen to have a cigar box full of new > power transistors that are that distinctive size and shape of the DS-501. > However I can't seem to determine what they are to see if they > cross-reference. Some of them are gold colored and have "108 6507" on them, > others are silver and say "466 108 6621", and still others are gold and say > "049 6222." Can anyone identify these transistors and tell me if they would > make a compatible substitute for a DS-501? > > Of course if they can't be identified, I may try and stick one in just to > see what happens . .. . > > > > -- > Gary E. Tayman/Tayman Electrical > Sound Solutions For Classic Cars > http://www.taymanelectrical.com > > Article: 325986 of rec.antiques.radio+phono Date: Mon, 14 Nov 2005 14:58:38 -0400 From: Bill Subject: Re: Variocoupler References: <8PXdf.9216$AS6.2269@newsread3.news.atl.earthlink.net> Message-ID: Northe Osbrink wrote: > A variocoupler can also be used to provide continuously-variable > coupling between the tuning coil and tickler in a regenerative circuit. > If you connect the two coils in series, with the rotating coil connected > in reverse, you wind up with a _variometer_, which results in an RF coil > with continuously-variable inductance. > > Northe, > N6KO > Thank you! I've never recognized the difference. -Bill Article: 325987 of rec.antiques.radio+phono Subject: Re: Kalamazoo Meet - Finds and Comments From: k9uwaREMOVE@THISarrl.netSTUFF (John Goller, k9uwa) References: Message-ID: <5j5ef.536533$x96.245618@attbi_s72> Date: Mon, 14 Nov 2005 19:10:57 GMT In article , larry@lfowkesx.com says... > > >there seemed to be good turnout. > >Larry Fowkes > > Wife was very happy with me as I didn't buy any radios.... She did!.. but only a couple of small ones... me it was a nice large bag of tubes >from several of the guys there selling tubes... and a few other interesting parts.... lots of fun yakking with the other collectors at the meet. And yes I talked a buddy who was with us into the 12 tuber Zenith shutter dial... he saved me from having to buy it! John k9uwa Article: 325989 of rec.antiques.radio+phono From: Jeffrey D Angus Subject: Re: Drake TR-4 Restoration question. References: Message-ID: Date: Mon, 14 Nov 2005 19:42:02 GMT Paul P wrote: > I have acquired a Drake TR4 with power supply that track accurately on 80, > 40, 20, 15 meters. The dial on the three 10 meter bands indicates about > 30khz higher than actual. I have tried to adjust the touchy L2 accurately, > looked at T1 for problems and swapped V1 tube. There are no cracked ferrite > cores. Other hams on the air have told me this is typical of this TR-4 gear > on 10 meters. If you haven't done so already, get the manual and the schematic >from the Boat Anchors Manual Archive. ftp://bama.sbc.edu/downloads/drake/tr4/ The manual is in DejaVu format. The Theory of Operation is on page 25 of the manual. (Page 27 of the DejaVu file.) And the Alignment Instructions are on page 34 of the manual. (Page 36 of the DejaVu file.) The schematic is horrid to have to try and figure out on your own without the Theory of Operation, and trying to follow what is going on under the chassis is equally awful. This is NOT to say that the radio is a bad design, it's just that this is a problem common to most "high end" designs from that time period. The 80 and 20 meter bands directly convert to the 9 MHz IF. * 40 meters pre converts to 16 MHz then to 9 MHz, and the 15 and 10 meter bands pre convert to 37 MHz and then to 9 MHz. You need to sit down and draw yourself a "road map" that shows what local oscillator crystal, and which common mixers are used on each band before you attempt to align the radio. For example, the 9 MHz IF and demodulator section has to be correctly aligned before attempting to align anything else. * Note: Back in the beginnings of SSB on the amateur bands, 9 MHz was picked as the "half way" point for an IF to either mix up from 80 meters or down from 20 meters to a common crystal filter. This is why the convention of LSB on 80 meters and USB on 20 meters. Jeff wa6fwi -- RESTRICTED AREA. Anyone intruding shall immediately become subject to the jurisdiction of military law. Intruders will be subject to lethal force, without warning, and on sight. USE OF DEADLY FORCE IS AUTHORIZED under the Internal Security Act of 1950. Article: 325990 of rec.antiques.radio+phono From: "Steven Dinius_" References: <11203-4371FEFA-7@storefull-3258.bay.webtv.net> <2fa1a$437353c0$4232bd4c$14908@COQUI.NET> <9K1ef.1348$s14.245@newsread2.news.pas.earthlink.net> Subject: Re: Whats on your bench lately ? Message-ID: <9M5ef.2006$ZA3.408449@monger.newsread.com> Date: Mon, 14 Nov 2005 19:41:57 GMT Less and less, which means mostly that $$$ is going into the bills and I now have a pretty nice living room to walk through and the two console Truetone TVs are going in maybe tomorrow with little detriment to space now. This was EXACTLY why I got all that stuff in the first place, and exactly what I planned to do with it has been done. Now I get to finish tackling the home projects. Article: 325991 of rec.antiques.radio+phono Message-ID: <4378E900.3A6F7855@earthlink.net> From: "Michael A. Terrell" Subject: Re: Delco DS-501 problem References: Date: Mon, 14 Nov 2005 19:47:52 GMT Gary Tayman wrote: > > If any of you have ever messed with car radios, you'll know that Delco > radios used a DS-501 power transistor for nearly every radio, from the first > hybrids right on up into the 1970's. These germanium transistor didn't fail > often, which i probably why replacements are scarce today. In fact the > books I have show replacements as either an SK-3012 or a GE-4. ECG doesn't > have a cross-reference. These things can be expensive, if you can find them > at all. > > So -- right now I have a Corvette radio with no sound, and what appears to > be a DS-501 that's bad. Now -- I happen to have a cigar box full of new > power transistors that are that distinctive size and shape of the DS-501. > However I can't seem to determine what they are to see if they > cross-reference. Some of them are gold colored and have "108 6507" on them, > others are silver and say "466 108 6621", and still others are gold and say > "049 6222." Can anyone identify these transistors and tell me if they would > make a compatible substitute for a DS-501? > > Of course if they can't be identified, I may try and stick one in just to > see what happens . .. . > > -- > Gary E. Tayman/Tayman Electrical > Sound Solutions For Classic Cars > http://www.taymanelectrical.com Industry Number : DS501 NTE Device Number: NTE105 T-PNP, GERMANIUM AUDIO PO,TO-36 I think that I still have a couple new ECG-105 transistors. The transistors numbers you listed sound like old Burroughs part numbers >from some of their early '70s mini computers. BTW, the JEDEC number for the DS501 was 2N441 -- ? Michael A. Terrell Central Florida Article: 325992 of rec.antiques.radio+phono Message-ID: <4378EA02.8FD225E6@earthlink.net> From: "Michael A. Terrell" Subject: Re: Delco DS-501 problem References: <525ef.2004$ZA3.407900@monger.newsread.com> Date: Mon, 14 Nov 2005 19:52:10 GMT Steven Dinius_ wrote: > > Gary, you are a service person. Delco/Delphi will send you info a lot easier > than it was when I needed books on the AM stereo equipped 2000 series models > I have...? Go through the parts site at GM or ask a dealer for leads...worth > a shot though maybe you did that already? No, they won't. The part has been obsolete for almost 30 year, and Delco is useless when it comes to supplying information on parts that old. The only way you would get it was if you could find one of the engineers from the old Kokomo, Indiana plant. I used to see them every year at the Dayton hamfest, but the last time I was there was 1987. I used to attend the annual Delco Electronics service school back in the 70s, as well. -- ? Michael A. Terrell Central Florida Article: 325993 of rec.antiques.radio+phono From: white@ssnow.com Subject: Re: Latin Fast House Message-ID: <71nhn1ps6uc0upqvcgjp3sacnpkchn4p3q@4ax.com> References: <11nd9eub5ddpj78@corp.supernews.com> <1131855713.712314.133540@z14g2000cwz.googlegroups.com> Date: Mon, 14 Nov 2005 12:59:44 -0700 On Sun, 13 Nov 2005 12:08:43 -0500, "Sox_in_2006" wrote: >Clinton lied, no one died? Tell that to the families of the people from the >Aspirin factory that he wagged the dog and bombed to get out of his felony. I'm sure their just as sad as families of the Marines who died in the 1983 Lebanon bombing. You know, the ones that Reagan sent in as peace keepers. The ones who were guarded by sentries armed with pistols but no rifels. As soon as it got embarrassing after the news of the bombing he pulled out the US forces. That would be the same Reagan whose administration gave the world Iran Contra, that would be selling arms to Iran so they could supplement the Contras lagging profits from drug dealing. Since the US could no longer legally fund the Contras ( Congress forbid any funding with the Borland Amendment) the administration found a way to do it, granted they were committing a felony,but hey whose counting. After all it was Reagan and he had such a nice smile. Politicians are all fucking whores with no honor. ALL OF THEM!! The only two I have liked in the last 60 years are Bush senior and Jimmy Carter..Go Figure. Article: 325994 of rec.antiques.radio+phono From: "Steven Dinius_" References: <525ef.2004$ZA3.407900@monger.newsread.com> <4378EA02.8FD225E6@earthlink.net> Subject: Re: Delco DS-501 problem Message-ID: <6o6ef.2012$ZA3.408937@monger.newsread.com> Date: Mon, 14 Nov 2005 20:24:34 GMT "Michael A. Terrell" wrote in message news:4378EA02.8FD225E6@earthlink.net... > Steven Dinius_ wrote: > > > > Gary, you are a service person. Delco/Delphi will send you info a lot easier > > than it was when I needed books on the AM stereo equipped 2000 series models > > I have...? Go through the parts site at GM or ask a dealer for leads...worth > > a shot though maybe you did that already? > > > No, they won't. The part has been obsolete for almost 30 year, and > Delco is useless when it comes to supplying information on parts that > old. The only way you would get it was if you could find one of the > engineers from the old Kokomo, Indiana plant. I used to see them every > year at the Dayton hamfest, but the last time I was there was 1987. I > used to attend the annual Delco Electronics service school back in the > 70s, as well. > > -- > ? > > Michael A. Terrell > Central Florida Thank you, I stand happily informed. Article: 325995 of rec.antiques.radio+phono From: et472@FreeNet.Carleton.CA (Michael Black) Subject: Re: Drake TR-4 Restoration question. Date: 14 Nov 2005 20:27:06 GMT Message-ID: References: Jeffrey D Angus (jangus@socal.rr.com) writes: > The 80 and 20 meter bands directly convert to the 9 MHz IF. * > 40 meters pre converts to 16 MHz then to 9 MHz, and the 15 > and 10 meter bands pre convert to 37 MHz and then to 9 MHz. > I couldn't remember what sort of conversion scheme it used. Given that the problem is only on 10meters, but not specific to one of the 10meter segments, it would likely be something common to the crystal oscillator that comes into play only on the 10MHz band. Like some capacitor that gets switched in, or the coil that I assume will be found in the plate of the oscillator. Of course, it might be some loading after the oscillator that only affects the 10meter band. If it was only one band that was off, the most obvious thing would be that the crystal is no longer on the frequency that it should be. But since it involves three different crystals, it seems unlikely all are off, which then points to something common to all three segments. Michael Article: 325996 of rec.antiques.radio+phono From: "Steven Dinius_" References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> <%mOdf.16683$Hj2.4595@news-server.bigpond.net.au> Subject: Re: schematics needed Message-ID: <2r6ef.2013$ZA3.409065@monger.newsread.com> Date: Mon, 14 Nov 2005 20:27:42 GMT I will laugh in unison if Jeff brings up how I used to send my actual email address, but the spammers didn't care either ;-) "philo" wrote in message news:avmdnUn8gsHUduXenZ2dnUVZ_tmdnZ2d@athenet.net... > > > > > I thought the same thing but as you say, > > I was waiting for a more expert opinion before embarking on that project > > although I didn't know those two valves were similar > > I emailed photos to you, if your email address is right > > > > > > my posted email is a spam trap. > i got way too much spam when i used my actual email > > my actual email is philo_565 (dot) yahoo (dot) com > > Article: 325997 of rec.antiques.radio+phono From: "xrongor" Subject: Re: Positive ground auto radios Date: Mon, 14 Nov 2005 14:09:06 -0700 Message-ID: References: <1131980661.287770.231860@f14g2000cwb.googlegroups.com> i believe the idea was to reduce the cathodic effect and reduce corrosion. thats what ive been told anyway... randy "wagil" wrote in message news:1131980661.287770.231860@f14g2000cwb.googlegroups.com... > Does anyone have any coments/thoughts/opinions about why some auto > makers had a positive ground electrical system and what the merits of a > pos ground system. Also--how this affected their auto radios. It > seems as tho the radio wouldn't care which was ground, but maybe > someone has some insight about this? > > Thanks for your help and comments > > Wayne > Article: 325998 of rec.antiques.radio+phono From: Hagstar Subject: Re: old, cold sloder joints Date: Mon, 14 Nov 2005 16:13:42 -0500 Message-ID: <11nhvgf5joi7f06@corp.supernews.com> References: <936-437825B9-144@storefull-3332.bay.webtv.net> Alan Douglas wrote: > > > I think it's used to treat swimming-pool water too. Generally today these copper algaecides are now chelated though, not straight sulfate. John H. Article: 325999 of rec.antiques.radio+phono From: Ken Subject: Re: A Franken-radio on Craigslist References: <1131977596.538444.235740@g43g2000cwa.googlegroups.com> Message-ID: Date: Mon, 14 Nov 2005 17:03:11 -0500 and uuuuuugly. Ken philo wrote: > AuroraOldRadios wrote: > >>Looks like a 1950s tube hifi grafted into a 1920s hi-boy. >>http://denver.craigslist.org/clt/110846188.html >> > > scary allright!@ Article: 326000 of rec.antiques.radio+phono Subject: Re: Zenith 8-S-463 Dial Cord ??? From: k9uwaREMOVE@THISarrl.netSTUFF (John Goller, k9uwa) References: <1131800796.742198.20070@g14g2000cwa.googlegroups.com> Message-ID: Date: Mon, 14 Nov 2005 22:19:35 GMT In article <1131800796.742198.20070@g14g2000cwa.googlegroups.com>, n9vu@yahoo.com says... > > >Hey John, > >What about that material that Allen Jesperson sells? It's square belt >material he sells by the foot. I bought a stump load at the big ARCI >radio fest a few months ago. Want to re belt my 9S262 and maybe a few >other Zeniths (one's an 8S like in this artical). Will that material >die in a few months, or is it the cloth stuff you're talking about? > >GB That stuff is OK... but as Mark said.. it wants to crawl off the pulleys more so than the round stock does ... when you do the belt to the motor on your 9s262 .. be sure to leave it looser than the dial one... in this case you want that motor to spin up quickly even if it slips a little as it gets wound up is fine... tighter than that and its too much load on the motor to pull the gear train and dial up from zero speed.. John Article: 326001 of rec.antiques.radio+phono From: "Benjamaniac" Subject: Re: A Franken-radio on Craigslist Date: Mon, 14 Nov 2005 15:46:04 -0700 Message-ID: References: <1131977596.538444.235740@g43g2000cwa.googlegroups.com> I showed my wife that pic. She told me that if I ever did something like that she wanted a divorce and she was suing for custody of all my radios. Ben "AuroraOldRadios" wrote in message news:1131977596.538444.235740@g43g2000cwa.googlegroups.com... > Looks like a 1950s tube hifi grafted into a 1920s hi-boy. > http://denver.craigslist.org/clt/110846188.html > Article: 326002 of rec.antiques.radio+phono Date: Mon, 14 Nov 2005 18:47:40 -0400 From: Bill Subject: Re: A Franken-radio on Craigslist References: <1131977596.538444.235740@g43g2000cwa.googlegroups.com> Message-ID: Benjamaniac wrote: > I showed my wife that pic. She told me that if I ever did something > like that she wanted a divorce and she was suing for custody of all my > radios. > Ben Good woman! -Bill > Article: 326003 of rec.antiques.radio+phono From: "Steven Dinius_" References: <1131977596.538444.235740@g43g2000cwa.googlegroups.com> Subject: Re: A Franken-radio on Craigslist Message-ID: Date: Mon, 14 Nov 2005 23:10:18 GMT Does it make chocolatey milk? "Bill" wrote in message news:c0f29$4379140d$4232bdbd$16969@COQUI.NET... > Benjamaniac wrote: > > > I showed my wife that pic. She told me that if I ever did something > > like that she wanted a divorce and she was suing for custody of all my > > radios. > > Ben > > Good woman! > > -Bill > > > Article: 326004 of rec.antiques.radio+phono From: "Gary Tayman" References: <4378E900.3A6F7855@earthlink.net> Subject: Re: Delco DS-501 problem Message-ID: Date: Mon, 14 Nov 2005 23:41:19 GMT Although I appreciate all the replies, it seems everyone has it backwards. I know what a DS-501 is, what I don't know is what those other types are and if they would make a suitable replacement. I don't like the idea of putting in used transistors, especially germanium, but at this point that may be the case. I get umpteen Delco radios for conversion and the old DS-501's get tossed. I think I got another one today; I'll have to pull it and try it in this set. However I'd still like to know if my cigar box full of new 108's will work. BTW, there is a 108 that will substitute for some silicon type, but I don't believe this is correct. The similar types with the 049 number shows the replacement being a zener diode! -- Gary E. Tayman/Tayman Electrical Sound Solutions For Classic Cars http://www.taymanelectrical.com "Michael A. Terrell" wrote in message news:4378E900.3A6F7855@earthlink.net... > Gary Tayman wrote: >> >> If any of you have ever messed with car radios, you'll know that Delco >> radios used a DS-501 power transistor for nearly every radio, from the >> first >> hybrids right on up into the 1970's. These germanium transistor didn't >> fail >> often, which i probably why replacements are scarce today. In fact the >> books I have show replacements as either an SK-3012 or a GE-4. ECG >> doesn't >> have a cross-reference. These things can be expensive, if you can find >> them >> at all. >> >> So -- right now I have a Corvette radio with no sound, and what appears >> to >> be a DS-501 that's bad. Now -- I happen to have a cigar box full of new >> power transistors that are that distinctive size and shape of the DS-501. >> However I can't seem to determine what they are to see if they >> cross-reference. Some of them are gold colored and have "108 6507" on >> them, >> others are silver and say "466 108 6621", and still others are gold and >> say >> "049 6222." Can anyone identify these transistors and tell me if they >> would >> make a compatible substitute for a DS-501? >> >> Of course if they can't be identified, I may try and stick one in just to >> see what happens . .. . >> >> -- >> Gary E. Tayman/Tayman Electrical >> Sound Solutions For Classic Cars >> http://www.taymanelectrical.com > > Industry Number : DS501 > NTE Device Number: NTE105 > T-PNP, GERMANIUM AUDIO PO,TO-36 > > I think that I still have a couple new ECG-105 transistors. > > > The transistors numbers you listed sound like old Burroughs part numbers > from some of their early '70s mini computers. > > BTW, the JEDEC number for the DS501 was 2N441 > > -- > ? > > Michael A. Terrell > Central Florida Article: 326005 of rec.antiques.radio+phono From: Tim Mullen Subject: Re: odd variable capacitor ? Date: Tue, 15 Nov 2005 00:35:07 +0000 (UTC) Message-ID: References: <7n0df.15196$q%.10041@newssvr12.news.prodigy.com> In Jim Mueller writes: >On Fri, 11 Nov 2005 12:44:51 +0000, Henry Kolesnik wrote: >> I never heard of the transmitter scam before and I would think that people >> would have wanted to hear their favorite 2 or 3 stations. I wonder how they >> did the scam? >How could they have 2 or 3 favorite stations if they didn't have a radio? Heard them at a neighbor's house? -- Tim Mullen ------------------------------------------------------------------ Am I in your basement? Looking for antique televisions, fans, etc. ------ finger this account or call anytime: (212)-463-0552 ------- Article: 326006 of rec.antiques.radio+phono From: " Uncle Peter" References: <1131941022.205288.258450@z14g2000cwz.googlegroups.com> Subject: Re: Touch Based Antenna Message-ID: <_jaef.1015$Xd6.769@fed1read06> Date: Mon, 14 Nov 2005 19:53:39 -0500 Check the antenna coupling winding (primary) for continuity. Open windings is a common problem in some Philcos. Pete "RadioGary" wrote in message news:1131941022.205288.258450@z14g2000cwz.googlegroups.com... > This is an odd problem yet I'm sure it's easy to resolve. This occurs > on two different sets that I have, both Philco's, one tombstone, one > cathedral. In each reception is poor. Connecting a wire or touching > antenna terminals improves reception slightly, however a touch of the > wire leading to an RF tube plate cap brings the sets to strong > reception. I'm guessing a poor connection to the antenna input, but > could this be something else like the tube itself going south? > Article: 326007 of rec.antiques.radio+phono Subject: Re: Drake TR-4 Restoration question. From: Larry References: Message-ID: Date: Mon, 14 Nov 2005 20:08:47 -0500 "Paul P" wrote in news:eu3ef.54844$qk4.41195@bgtnsc05-news.ops.worldnet.att.net: > 30khz higher than actual Follow along with the Schematic on: ftp://bama.sbc.edu/downloads/drake/tr4/sch.gif The frequency of old VFO ham rigs, including the TR4 is a resultant between a fixed frequency range VFO (to keep the dial calibrations the same for all the bands, unlike old radios whos calibrations get very narrow as frequency band increases) + or - the "Band Oscillator", a fixed crystal oscillator whos crystal sets the starting frequency of each band. These two oscillators are fed to a mixer tube whos resultant frequency is the receiver/transmitter IF frequency away from the desired air frequency. In the case of the TR4, the IF is 9 Mhz, the frequency of the most important part of this great old transceiver, the really sharp SSB filter. Q1, a permiability-tuned Hartley, always tunes over the same range, no matter what the band. If it were off frequency, all the bands would be off frequency by the exact same amount because its range doesn't change from band to band. Your problem is one band off freq. The only shift that could go that far is if the Xtal oscillator for that band were off frequency. Look in the upper left corner of the schematic at V1A, the triode of a 6EA8 used as the crystal oscillator. The bandswitch is shown in the 80/75M position. No crystal is attached or needed as the Q1 oscillator ONLY is used to create the 75/80 meter local oscillator frequency. The mixer simply acts as an amp. To get 40 meters, the 21.5 Mhz xtal is oscillating. 20 meters uses the 35.5 Mhz xtal. 15 the 42.5 Mhz and the two 10 meter bands uses the two 43 Mhz xtals....your problem. Are BOTH 10 meter bands off 30 Khz or just one of them?? Hard to believe both xtals are off by the same amount. These cheap little crystals DO have trimmers to sort of align the bands so the calibrations of the dial are reasonable and within range of the front panel adjuster. L2 should move both 10 meter band segments by about the same amount and may be what you need to adjust. It looks like L2 adjusts the xtal freq for both 10M xtals plus the 15M xtal. You may be able to adjust the highest 10M segment with L2 then bend L3 to adjust the lower 10M segment then bend L4 to adjust the 15M band....in this sequence. These coils make up for the cheap parts and crappy tube capacitance differences. I had a TR-4C and TR-4CW models over the years. It's nice to have 300 watts (new sweep tubes QUICKLY tuned before the plates melt) without a linear. I kept the L4B proper 3-500Z linear amp long after I'd sold the transceivers. I dumped the cheap L4B voltage doubler power supply that was its weak point and built a proper full-wave HVPS with 100% duty cycle power supply I could use on RTTY at the legal limit. The cheap sheet metal 3- 500Zs were replaced with the fantastic Amperex 3-500ZG tubes with graphite plates you couldn't melt on RTTY keydown for hours. Ah, the soft glow of a fully-loaded kilowatt of graphite plates sending RYRYRYRYRYRYRYRYRYRYR. They glowed a nice cherry red. I never ran the TR4C on data modes. Sweep tubes don't like keydown over 3 seconds...(c; But this is one sweet SSB radio when you get to know its quirks and shortcomings. I ran it mobile for years, too, with Drake's own 12V PS into my homebrew Texas bugcatchers. Lots of contacts all over the place mobile on the TR-4C. Thanks for the memories. Hope this helps find your problem. If L-2 won't bring it in, it needs new 43 Mhz crystals. -- Larry Article: 326008 of rec.antiques.radio+phono Date: Mon, 14 Nov 2005 21:15:03 -0400 From: Bill Subject: Re: schematics needed References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> <%mOdf.16683$Hj2.4595@news-server.bigpond.net.au> <2r6ef.2013$ZA3.409065@monger.newsread.com> Message-ID: <40422$4379369b$4232bdbd$31702@COQUI.NET> philo wrote: > Steven Dinius_ wrote: > >>I will laugh in unison if Jeff brings up how I used to send my actual email >>address, but the spammers didn't care either ;-) >> > > > > > when i first started posting on usenet > i just used my real address for years... > then one day i was hit by 50 spammers... > and it soon increased to 200 a day. Nowadays if you respond to posts from Dinius you're more likely to create fanatical and threatening phone calls to your wife/girlfriend/job/church. He gives spammers a good name. In spite of all the problems he has caused - some people tend to still treat him like "just another poster" trying to be nice. Arrest Warrant is outstanding in the State of Florida for one. You're new here, philo. Don't interact with this guy. We're trying to ignore him but there's a newcomer-a-minute that keeps him going. He's a network news event waiting to happen. -Bill Article: 326009 of rec.antiques.radio+phono Subject: Re: Wurlitzer Orbit III - Out Of Tune...Help! From: Larry References: <1132004173.026515.303980@g43g2000cwa.googlegroups.com> Message-ID: Date: Mon, 14 Nov 2005 20:15:07 -0500 jonathandowns@gmail.com wrote in news:1132004173.026515.303980@g43g2000cwa.googlegroups.com: > my wurlitzer orbit III is out of tune. it went a few months without > being played, and now the entire thing is flat. is there some way to > tune it? perhaps a global tuning pot somethere or something (because > the entire thing went flat...it's in tune with itself, but it's nearly > a half step out). > > thanks! > > Is it the synthesizer keyboard on top or the lower manuals? The upper synthesizer is a totally separate unit, generator and all. Take off the top and release the catches and the Orbit III swings up for service. You'll find an oscillator adjustment in it...left side I think, but it's been years. I remember when they were new. Smartassed technicians always set them up with that silly VFO turned wide as it would go. Anyone coming into the store that touched an Orbit key got a loud sound that sounded like a siren going off....great fun in a busy mall...(c; I'll try to find the manual in my files if your lost.... -- Larry Article: 326010 of rec.antiques.radio+phono From: "Martin Crossley" References: <18127-43701156-162@storefull-3172.bay.webtv.net> <437157b7$0$63054$ed2e19e4@ptn-nntp-reader04.plus.net> <4377db3e$0$18855$ed2619ec@ptn-nntp-reader02.plus.net> <_xSdf.243$vq1.43@tornado.rdc-kc.rr.com> Subject: Re: Variable Regulated Tube Power Supplies. Date: Tue, 15 Nov 2005 01:27:28 -0000 Message-ID: <43793998$0$82648$ed2619ec@ptn-nntp-reader03.plus.net> "jim menning" wrote in message news:_xSdf.243$vq1.43@tornado.rdc-kc.rr.com... > > "Martin Crossley" wrote in message > news:4377db3e$0$18855$ed2619ec@ptn-nntp-reader02.plus.net... >> >> "Steven Swift" wrote in message >> news:dl3dup$gq9$1@eskinews.eskimo.com... >>> "Martin Crossley" writes: >>>>>Sadly, most of those were hot chassis. >>> >>>>Negatory, good buddy. By and large, transformer operated color chasses >>>>were isolated from the AC line. >>>> In fact the 'hot chassis' practice was abandoned long >>>>before the advent of color TV sets. >>> >>> >> >> Oh no I didn't! >> > > Martin --- I think the confusion comes form your earlier post not > correctly attributing prior quotes to the proper person. The post of > Bill's that you replied to shows no tick marks or other signals > differentiating Bill's words from your own words. > > jim menning > Jim, Looking back through the thread, you're absolutely right. I wonder why my newsreader messed that up. I'll see what happens with this one. Cheers, Martin. Article: 326011 of rec.antiques.radio+phono From: "Steven Dinius_" References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> <%mOdf.16683$Hj2.4595@news-server.bigpond.net.au> <2r6ef.2013$ZA3.409065@monger.newsread.com> Subject: Re: schematics needed Message-ID: Date: Tue, 15 Nov 2005 01:41:08 GMT My ray of hope was having to change to an ISP that actually had a clue. From 3800 to 8 filtered unwanted messages or viruses in one month. Right now the big deal seems to be the floods of 'info@" followed by random letters and an ASCII string as a subject. Our ISP head has been building business systems since before the 25MHz 8088s were on the market. "philo" wrote in message news:wu-dneAVe4slr-TeRVn-hA@athenet.net... > Steven Dinius_ wrote: > > I will laugh in unison if Jeff brings up how I used to send my actual email > > address, but the spammers didn't care either ;-) > > > > > > when i first started posting on usenet > i just used my real address for years... > then one day i was hit by 50 spammers... > and it soon increased to 200 a day. > > i started using the privacy.net address > and i had to get mail washer for my windows machines. > > it took 2 - 3 weeks > but finally the spam started dropping off. > but it was months before it got down to a minimal > 5 or 6 a day Article: 326012 of rec.antiques.radio+phono From: "Steven Dinius_" References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> <%mOdf.16683$Hj2.4595@news-server.bigpond.net.au> <2r6ef.2013$ZA3.409065@monger.newsread.com> <40422$4379369b$4232bdbd$31702@COQUI.NET> Subject: Re: schematics needed Message-ID: <2cbef.2028$ZA3.414777@monger.newsread.com> Date: Tue, 15 Nov 2005 01:53:02 GMT "Bill" wrote in message news:40422$4379369b$4232bdbd$31702@COQUI.NET... > philo wrote: > > > Steven Dinius_ wrote: > > > >>I will laugh in unison if Jeff brings up how I used to send my actual email > >>address, but the spammers didn't care either ;-) > >> > > > > > > > > > > when i first started posting on usenet > > i just used my real address for years... > > then one day i was hit by 50 spammers... > > and it soon increased to 200 a day. > > Nowadays if you respond to posts from Dinius you're more likely to > create fanatical and threatening phone calls to your > wife/girlfriend/job/church. He gives spammers a good name. I'm not hearing anything about it and Michael actually responds to me. Why are you so hellbent on this fantasy of yours, Bill Meacham? If I have a warrant, why haven't the locals come to arrest me? I bothered to query their sherriff's department some time ago. They sounded puzzled if not confused. When did any drug usage or such cease being a mental health issue? Why do you feel superior? You're just sucking on shoe leather. Your shirt is all wet too. You're not worth plonking and you haven't advanced anything trying. You are a great restorer and designer of radios, a poor despot. You are wasting our time with a broken record about a wolf. I think freedom is must more stable than jail, I try to limit that to every fifteen years or more between. I laugh some more. Article: 326013 of rec.antiques.radio+phono From: "Martin Crossley" References: <_xSdf.243$vq1.43@tornado.rdc-kc.rr.com> <20694-437815EC-366@storefull-3177.bay.webtv.net> Subject: Re: Variable Regulated Tube Power Supplies. Date: Tue, 15 Nov 2005 01:51:12 -0000 Message-ID: <43793f13$0$82631$ed2619ec@ptn-nntp-reader03.plus.net> "Bill Sheppard" wrote in message news:20694-437815EC-366@storefull-3177.bay.webtv.net... > P.S. > ARRGh. Aha (thumps forehead). British household AC is 230V is > it not? > That would explain transformerless TV sets being true "hot chassis". Yea > or nay? > oc > Bill, Interesting that when I tried replying to your post immediately before this, my newsreader wouldn't put in the attribution marks, but it will on this one. Yes indeed "hot chassis" as you say, or "live chassis" as we say. One for the British-American translation thread! Here, a "hot" chassis could mean either that it ran extremely warm, or was exceptionally sensitive... Actually, the 50s/ early 60s sets still had to cater for the few 200V dc supplies, as well as 200-250V ac, so they were often designed for 200V ac, with big tapped dropper resistors to cope with the higher supplies, giving an HT rail of about 200V and with the (half-wave, valve or selenium) rectifier shorted out for 200V dc operation. Typical power consumption 150-200W. Martin. Article: 326014 of rec.antiques.radio+phono From: "Steven Dinius_" References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> <%mOdf.16683$Hj2.4595@news-server.bigpond.net.au> <2r6ef.2013$ZA3.409065@monger.newsread.com> <40422$4379369b$4232bdbd$31702@COQUI.NET> Subject: Re: schematics needed Message-ID: Date: Tue, 15 Nov 2005 01:56:51 GMT "philo" wrote in message news:mv-dnZoLR6w3peTeRVn-uQ@athenet.net... > . > > > > Arrest Warrant is outstanding in the State of Florida for one. You're > > new here, philo. Don't interact with this guy. We're trying to ignore > > him but there's a newcomer-a-minute that keeps him going. > > > > He's a network news event waiting to happen. > > > > -Bill > > > thanks for the warning. > in that case... > maybe i should post my boss's phone number exray gets on the rag every 5 weeks and he's the only one beating a horse. Right now you should find a shovel, it's deep. He should feel lucky that his ISP seems as ignorant as he thinks mine is, as neither of us got anywhere doing that stunt. Article: 326015 of rec.antiques.radio+phono Date: Mon, 14 Nov 2005 22:33:52 -0400 From: Bill Subject: Re: schematics needed References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> <%mOdf.16683$Hj2.4595@news-server.bigpond.net.au> <2r6ef.2013$ZA3.409065@monger.newsread.com> <40422$4379369b$4232bdbd$31702@COQUI.NET> Message-ID: <4e875$43794913$4232bd9a$11355@COQUI.NET> philo wrote: > > > thanks for the warning. > in that case... > maybe i should post my boss's phone number Hehe, you don't need to do that. He claimed here once to have spoken to my wife "about me" not knowing that my wife doesn't speak English. He's probably already "speaking" to your boss. -ex Article: 326016 of rec.antiques.radio+phono From: "Steven Dinius_" References: <6cjdf.15555$Hj2.14528@news-server.bigpond.net.au> <65Fdf.16430$Hj2.257@news-server.bigpond.net.au> <%mOdf.16683$Hj2.4595@news-server.bigpond.net.au> <2r6ef.2013$ZA3.409065@monger.newsread.com> <40422$4379369b$4232bdbd$31702@COQUI.NET> <4e875$43794913$4232bd9a$11355@COQUI.NET> Subject: Re: schematics needed Message-ID: Date: Tue, 15 Nov 2005 02:55:40 GMT She didn't speak much, whomever she was, WHO'S boss anyway? Who the fuck is Philo and why do I know his "boss"? You can't even write for the tabloids they sell at Wal-Mart if you can't try an allegation to a fact. Quit drinking and go to sleep. "Bill" wrote in message news:4e875$43794913$4232bd9a$11355@COQUI.NET... > philo wrote: > > > > > > > thanks for the warning. > > in that case... > > maybe i should post my boss's phone number > > Hehe, you don't need to do that. He claimed here once to have spoken to > my wife "about me" not knowing that my wife doesn't speak English. He's > probably already "speaking" to your boss. > > -ex > > > Article: 326017 of rec.antiques.radio+phono From: "Steven Dinius_" Subject: RCA console listed "project radio"...looks nice... Message-ID: Date: Tue, 15 Nov 2005 04:01:54 GMT and not Mark Oppats either http://cgi.ebay.com/RCA-MODEL-6K3-CONSOLE-RADIO-PROJECT-PARTS-CIRCA-1940S_W0QQitemZ6578907022QQcategoryZ38034QQrdZ1QQcmdZViewItem -- Free, while supplies last Article: 326018 of rec.antiques.radio+phono From: "Steven Dinius_" References: Subject: Re: FA Nice RCA T10-1 Message-ID: Date: Tue, 15 Nov 2005 04:12:10 GMT Nope, and the console I found starts at about 10 bucks too, and it still isn't yours "Mark Oppat" wrote in message news:ToydnQVFuN1cwOTeRVn-uw@comcast.com... > not mine, but a great radio! You dont see restored ones much either. > > http://cgi.ebay.com/RCA-T-10-1-Tombstone-Radio_W0QQitemZ5829166418QQcategoryZ48649QQrdZ1QQcm