Article: 99873 of rec.radio.amateur.boatanchors From: "Henry Kolesnik" Subject: 1/2 D cell 1.5 ? Message-ID: <%eHVe.559$5n4.301@newssvr29.news.prodigy.net> Date: Tue, 13 Sep 2005 21:10:19 GMT Last weekend at the Mena swapfest I bought a military transistor testet Model TT-22 made by Abbey Electronics, L.I. NY in 1968. It uses four Eveready Alkaline 1/2 D cells N0. E94 1.5 volts. I've never seen or heard of these runts before I got this thing. Google isn't much help. Any tips or help appreciated. -- 73 Hank WD5JFR Article: 99874 of rec.radio.amateur.boatanchors From: Gregg Subject: Re: Which tube tester? Date: Tue, 13 Sep 2005 17:39:31 -0700 References: <4325183b$1_1@dowco.com> Message-ID: <43277136$1_1@dowco.com> Behold, Phil Nelson scribed on tube chassis: > I'll be a contrarian and ask, Do you really need a tester? Hi Phil, I do no repairs, but design from scratch, so yeah, it'd be handy ;-) I have over 1,000 tubes with many onesies, so I can't really sub too easily. Example, a tube regulator drove me nutz. It was a bad 6AU6, 'cause when I rewired for a 6CB6, it worked :-) Cheers! -- Gregg "t3h g33k" http://geek.scorpiorising.ca *Ratings are for transistors, tubes have guidelines* Article: 99875 of rec.radio.amateur.boatanchors From: Gregg Subject: Re: Big old-fashioned IF transformers for tube-type homebrewing? Date: Tue, 13 Sep 2005 17:50:23 -0700 References: <1126653515.795787.34880@g43g2000cwa.googlegroups.com> Message-ID: <432773c1$1_1@dowco.com> Behold, Tim Shoppa scribed on tube chassis: > Are the big old-fashioned IF transformers-in-a-can available anywhere > anymore? I want to make a receiver, probably double conversion, which > would mean that I'd want several each of the 50kHz and some higher > frequency (455kHz likely). > > Are these things that can be made from scratch without a lot of > difficutly? I can wind coils etc. but don't have any transformer > slug-tuned cores. > > Tim KA0BTD Hi Tim, Check out my article here: http://geek.scorpiorising.ca/455KHz.html Cheers! -- Gregg "t3h g33k" http://geek.scorpiorising.ca *Ratings are for transistors, tubes have guidelines* Article: 99876 of rec.radio.amateur.boatanchors From: "COLIN LAMB" References: <4325183b$1_1@dowco.com> Subject: Re: Which tube tester? Message-ID: <6rLVe.10046$Wd7.1044@newsread1.news.pas.earthlink.net> Date: Wed, 14 Sep 2005 01:56:18 GMT Switching tubes in a radio is a good simple test, but still requires some basic organization. I remember using a radio to test a batch of 6CB6 tubes. I tested about ten old unboxed tubes and found two of them were bad. Unfortunately, I had grouped the tubes into different groups of similar performance. A couple bad, a couple very hot, some middle of the road and so on. When I got done, I had forgotten where the bad tubes were, so had to start over again. Before a friend died, he requested that I purchase his collection of 14,000 used tubes - which I did. Fortunately, my wife was away and I got them home and stored before she got home. It was weeks before she figured out there was something new in my collection. But, having 15,000 tubes (I had 1,000) is something like a curse. The last time I needed a particular tube, I could not find it and had to buy one. Found it 2 months later. 73, Colin K7FM Article: 99877 of rec.radio.amateur.boatanchors From: "Bill Morris" References: <%eHVe.559$5n4.301@newssvr29.news.prodigy.net> <1126661046.805074.71190@g47g2000cwa.googlegroups.com> Subject: Re: 1/2 D cell 1.5 ? Date: Tue, 13 Sep 2005 21:18:34 -0500 Message-ID: <43278871$0$32200$39cecf19@news.twtelecom.net> I've posted a page from a mid-sixties Eveready catalog that shoes this battery. wrote in message news:1126661046.805074.71190@g47g2000cwa.googlegroups.com... > > Henry Kolesnik wrote: >> Last weekend at the Mena swapfest I bought a military transistor testet >> Model TT-22 made by Abbey Electronics, L.I. NY in 1968. It uses four >> Eveready Alkaline 1/2 D cells N0. E94 1.5 volts. I've never seen or >> heard >> of these runts before I got this thing. Google isn't much help. Any >> tips >> or help appreciated. >> >> -- >> >> 73 >> Hank WD5JFR > > I've a guide that lists that battery to be registered as NEDA # 927 > (and no equivalent Mil #, or Burgess, or Mallory, Ray-O-Vac etc.) > > ...and Google was useless for me to go further too; no, it's not > 'National Eating Disorders Association', it's the National Electronic > Distributors Association; but I didn't see any spec information on > their web site. I checked my NEDA 1971 crossover guide as well--and it seems Eveready was the only player in the game that made that type of battery. No equivalents listed. Bill Article: 99878 of rec.radio.amateur.boatanchors From: kludge@panix.com (Scott Dorsey) Subject: Re: Big old-fashioned IF transformers for tube-type homebrewing? Date: 14 Sep 2005 01:05:29 -0400 Message-ID: References: <1126653585.459065.41060@g43g2000cwa.googlegroups.com> Tim Shoppa wrote: >Are the big old-fashioned IF transformers-in-a-can available >anywhere anymore? I want to make a receiver, probably double >conversion, >which would mean that I'd want several each of the 50kHz and some >higher frequency (455kHz likely). Try a hamfest, or Antique Electronics Supply. >Are these things that can be made from scratch without a lot of >difficutly? I can wind coils etc. but don't >have any transformer slug-tuned cores. They are a bloody pain. You should try it. If it was easy, it wouldn't be fun. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." From adouglasatgis.net Thu Sep 15 11:59:47 EDT 2005 Article: 99879 of rec.radio.amateur.boatanchors From: Alan Douglas Newsgroups: rec.radio.amateur.boatanchors Subject: Re: Which tube tester? Date: Wed, 14 Sep 2005 06:49:49 -0400 Organization: http://newsguy.com Lines: 11 Message-ID: References: <4325183b$1_1@dowco.com> <4gfVe.9262$Wd7.5932@newsread1.news.pas.earthlink.net> NNTP-Posting-Host: p-476.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!news.glorb.com!pln-e!spln!lex!extra.newsguy.com!newsp.newsguy.com!news2 Xref: news1.isis.unc.edu rec.radio.amateur.boatanchors:99879 Hi, Colin wrote: >Incidently, one of my close friends >designed many of the circuits in the 585, and single handedly designed the >519 and 130, and I have a row Tek scopes and other Tek equipment. The 130 L-C meter? Great little instrument: I still have one on my bench, and examples of both the old and newer models. Alan Article: 99880 of rec.radio.amateur.boatanchors From: " Uncle Peter" References: <1126653585.459065.41060@g43g2000cwa.googlegroups.com> Subject: Re: Big old-fashioned IF transformers for tube-type homebrewing? Message-ID: Date: Wed, 14 Sep 2005 15:09:19 -0400 "Scott Dorsey" wrote in message news:dg8b2p$hg6$1@panix2.panix.com... > Tim Shoppa wrote: > >Are the big old-fashioned IF transformers-in-a-can available > >anywhere anymore? I want to make a receiver, probably double > >conversion, > >which would mean that I'd want several each of the 50kHz and some > >higher frequency (455kHz likely). > > Try a hamfest, or Antique Electronics Supply. > > >Are these things that can be made from scratch without a lot of > >difficutly? I can wind coils etc. but don't > >have any transformer slug-tuned cores. > > They are a bloody pain. You should try it. If it was easy, it > wouldn't be fun. > --scott > -- > "C'est un Nagra. C'est suisse, et tres, tres precis." Getting the bandpass right could be a pain; I'd guess the sweet spot is near critical coupling, where you'd get a double-humped response curve. Otherwise, undercoupling would give you a sharper peak, good for CW, or you'd have to sweep align the strip for the desired BW. Pete From adouglasatgis.net Thu Sep 15 11:59:48 EDT 2005 Article: 99881 of rec.radio.amateur.boatanchors From: Alan Douglas Newsgroups: rec.radio.amateur.boatanchors Subject: Re: Which tube tester? Date: Wed, 14 Sep 2005 16:43:02 -0400 Organization: http://newsguy.com Lines: 21 Message-ID: <8n1hi1hbae1abrasqg7rm15ivoafs31bih@4ax.com> References: <4325183b$1_1@dowco.com> <6rLVe.10046$Wd7.1044@newsread1.news.pas.earthlink.net> NNTP-Posting-Host: p-640.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!rex!extra.newsguy.com!newsp.newsguy.com!news2 Xref: news1.isis.unc.edu rec.radio.amateur.boatanchors:99881 Hi, The static transconductance test is more commonly known as the grid-shift method. It's very old, dating from the 1920s, but can be extremely accurate, depending on the amount of grid shift (easy with modern digital meters). Grid-shift went out of favor in the US in the 1930s but most of the British AVO models use it, except with rectified AC on the plate instead of DC. The Hickok AC-47 from 1930 had a dynamometer movement (6.25mA F.S.) and is actually a very fine instrument but was dropped in the mid-30s because of expense and the difficulty of keeping it up to date with adapters. Other than one Sensitive Research design, the last dynamometer model was Hickok's "laboratory model" 700. That beast was obsolete the day it appeared in 1951. The Hickok Cardmatic models---123, military USM-118B, Western Electric KS 15874---can measure either emission or transconductance, sometimes both (on TV sweep tubes for instance where extra cards are provided for each test). Alan Article: 99882 of rec.radio.amateur.boatanchors From: "John Reynolds" Subject: F.A. Racal RA.17 Film Strip Dial Date: Thu, 15 Sep 2005 00:36:13 +0100 Message-ID: Please see http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=5808242553&rd=1&sspagen ame=STRK%3AMESE%3AIT&rd=1 Article: 99883 of rec.radio.amateur.boatanchors From: novatech@eskimo.com (Steven Swift) Subject: 12V Plate Tubes. Date: 15 Sep 2005 01:27:23 GMT Message-ID: A while back there was a 12v tube thread. I saw this: http://www.thamesandkosmos.com/products/ra/ra2.html advertized in September Scientific American. The ad (on the builditplayit.com site) says it uses a "double triode" and requires 8-AA batteries (nominally 12V). I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. Anyone know? -- 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: 99884 of rec.radio.amateur.boatanchors Date: Wed, 14 Sep 2005 22:06:12 -0400 From: Bill Subject: Re: 12V Plate Tubes. References: Message-ID: Steven Swift wrote: > A while back there was a 12v tube thread. > > I saw this: > > http://www.thamesandkosmos.com/products/ra/ra2.html > > advertized in September Scientific American. The ad (on the > builditplayit.com site) says it uses a "double triode" and > requires 8-AA batteries (nominally 12V). > > I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. > > Anyone know? Can't speak for the kit but I know some guys have successfully used a plain old 12AT/AU/AX7 at 12 volts with acceptable results. -Bill Article: 99885 of rec.radio.amateur.boatanchors From: et472@FreeNet.Carleton.CA (Michael Black) Subject: Re: 12V Plate Tubes. Date: 15 Sep 2005 02:40:52 GMT Message-ID: References: Bill (exray@coqui.net) writes: > Steven Swift wrote: > >> A while back there was a 12v tube thread. >> >> I saw this: >> >> http://www.thamesandkosmos.com/products/ra/ra2.html >> >> advertized in September Scientific American. The ad (on the >> builditplayit.com site) says it uses a "double triode" and >> requires 8-AA batteries (nominally 12V). >> >> I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. >> >> Anyone know? > > Can't speak for the kit but I know some guys have successfully used a > plain old 12AT/AU/AX7 at 12 volts with acceptable results. > > -Bill There were a couple of articles in Popular Electronics in the early sixties about doing that. And oscillator and then an amplifier, if I remember the sequence properly. From memory, the author referred to them as "starved circuits". I have a vague memory of trying one of them in the early seventies, but I honestly can't remember if I did or didn't. Michael VE2BVW Article: 99886 of rec.radio.amateur.boatanchors Message-ID: <432912B9.62465B49@earthlink.net> From: "Michael A. Terrell" Subject: Re: 12V Plate Tubes. References: Date: Thu, 15 Sep 2005 06:19:56 GMT Bill wrote: > > Steven Swift wrote: > > > A while back there was a 12v tube thread. > > > > I saw this: > > > > http://www.thamesandkosmos.com/products/ra/ra2.html > > > > advertized in September Scientific American. The ad (on the > > builditplayit.com site) says it uses a "double triode" and > > requires 8-AA batteries (nominally 12V). > > > > I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. > > > > Anyone know? > > Can't speak for the kit but I know some guys have successfully used a > plain old 12AT/AU/AX7 at 12 volts with acceptable results. > > -Bill The ARN-6 direction finding receiver used 24 volts on the plates of 12SN7 tubes. I wonder how well they would perform at 12 volts? -- ? Michael A. Terrell Central Florida Article: 99887 of rec.radio.amateur.boatanchors From: Dana Subject: Ge super radio. Date: Thu, 15 Sep 2005 03:57:19 -0400 Message-ID: References: <1125511356.488033.277030@z14g2000cwz.googlegroups.com> I am looking for ge super radios. I would like to find the super i or the ii. If you have a couple laying around, e-mail back. Article: 99888 of rec.radio.amateur.boatanchors From: stanb45@dial.pipex.com (Stan Barr) Subject: Re: 12V Plate Tubes. References: Message-ID: Date: 15 Sep 2005 08:00:21 GMT On 15 Sep 2005 01:27:23 GMT, Steven Swift wrote: >A while back there was a 12v tube thread. > >I saw this: > >http://www.thamesandkosmos.com/products/ra/ra2.html > >advertized in September Scientific American. The ad (on the >builditplayit.com site) says it uses a "double triode" and >requires 8-AA batteries (nominally 12V). A goolgle for "space charge tubes" will probably turn up a lot of info on low voltage tubes. The Summer 2005 edition of Sprat, the GQRP club magazine, has a circuit for a vfo using a XFY43 hearing aid valve/tube running off 12V. Better stability than a fet oscillator, apparently. -- Cheers, Stan Barr stanb .at. dial .dot. pipex .dot. com (Remove any digits from the addresses when mailing me.) The future was never like this! Article: 99889 of rec.radio.amateur.boatanchors From: Barry OGrady Subject: Re: 12V Plate Tubes. Date: Thu, 15 Sep 2005 22:28:54 +1000 Message-ID: References: On 15 Sep 2005 02:40:52 GMT, et472@FreeNet.Carleton.CA (Michael Black) wrote: >Bill (exray@coqui.net) writes: >> Steven Swift wrote: >> >>> A while back there was a 12v tube thread. >>> >>> I saw this: >>> >>> http://www.thamesandkosmos.com/products/ra/ra2.html >>> >>> advertized in September Scientific American. The ad (on the >>> builditplayit.com site) says it uses a "double triode" and >>> requires 8-AA batteries (nominally 12V). >>> >>> I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. >>> >>> Anyone know? >> >> Can't speak for the kit but I know some guys have successfully used a >> plain old 12AT/AU/AX7 at 12 volts with acceptable results. >> >> -Bill > >There were a couple of articles in Popular Electronics in the early >sixties about doing that. And oscillator and then an amplifier, >if I remember the sequence properly. From memory, the author >referred to them as "starved circuits". > >I have a vague memory of trying one of them in the early seventies, >but I honestly can't remember if I did or didn't. I had a car radio which used 4 valves and 2 transistors. > Michael VE2BVW Barry ===== Home page http://members.iinet.net.au/~barry.og Article: 99890 of rec.radio.amateur.boatanchors From: Barry OGrady Subject: Re: 12V Plate Tubes. Date: Thu, 15 Sep 2005 22:29:56 +1000 Message-ID: References: <432912B9.62465B49@earthlink.net> On Thu, 15 Sep 2005 06:19:56 GMT, "Michael A. Terrell" wrote: >Bill wrote: >> >> Steven Swift wrote: >> >> > A while back there was a 12v tube thread. >> > >> > I saw this: >> > >> > http://www.thamesandkosmos.com/products/ra/ra2.html >> > >> > advertized in September Scientific American. The ad (on the >> > builditplayit.com site) says it uses a "double triode" and >> > requires 8-AA batteries (nominally 12V). >> > >> > I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. >> > >> > Anyone know? >> >> Can't speak for the kit but I know some guys have successfully used a >> plain old 12AT/AU/AX7 at 12 volts with acceptable results. I had a test oscilator which ran off a 9 volt grid bias battery. >> -Bill > > > The ARN-6 direction finding receiver used 24 volts on the plates of >12SN7 tubes. I wonder how well they would perform at 12 volts? >-- >? > >Michael A. Terrell >Central Florida Barry ===== Home page http://members.iinet.net.au/~barry.og Article: 99891 of rec.radio.amateur.boatanchors From: Simon Subject: Re: 12V Plate Tubes. Date: Thu, 15 Sep 2005 23:48:15 +1000 Message-ID: References: A number of Australian hybrid car radios of the 1960 period used special valves based on 12v HT but the output stage used transistors. Heaters were 6v with pairs of tubes wired in series. Tube types included 6DS8, 6DR8 & 6ES8 for RF, Mixer, IF and detector stages. These sets would not have worked with dry cells due to the use of tubes with heated cathodes. Simon. On 15 Sep 2005 01:27:23 GMT, novatech@eskimo.com (Steven Swift) wrote: >A while back there was a 12v tube thread. > >I saw this: > >http://www.thamesandkosmos.com/products/ra/ra2.html > >advertized in September Scientific American. The ad (on the >builditplayit.com site) says it uses a "double triode" and >requires 8-AA batteries (nominally 12V). > >I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. > >Anyone know? Article: 99892 of rec.radio.amateur.boatanchors From: "COLIN LAMB" References: Subject: Re: 12V Plate Tubes. Message-ID: Date: Thu, 15 Sep 2005 14:31:06 GMT My project this winter is to build a single tube transmitter into an Altoids box. I am sure that has been done before, but I plan to build in the entire power supply and key. It should work. Using an old geiger counter tube, I will use a AA battery for the filament and will first try a 9 volt battery for the plate and screen. That should be fine. If not, I will use either a 15 volt or 22 volt battery - but the 9 volt is cheaper. Power will be low, but having a friend a mile away makes the power requirement modest. CW only. As a kid, I built a one tube broadcast receiver using an old acorn tube and 15 volt battery for the plate. Colin K7FM Article: 99893 of rec.radio.amateur.boatanchors From: "Mike@Lincoln" Subject: Re: Big old-fashioned IF transformers for tube-type homebrewing? Date: Thu, 15 Sep 2005 15:39:10 +0000 (UTC) Message-ID: References: <1126653515.795787.34880@g43g2000cwa.googlegroups.com> "Tim Shoppa" wrote in message news:1126653515.795787.34880@g43g2000cwa.googlegroups.com... > Are the big old-fashioned IF transformers-in-a-can available > anywhere anymore? I want to make a receiver, probably double > conversion, > which would mean that I'd want several each of the 50kHz and some > higher frequency (455kHz likely). > > Are these things that can be made from scratch without a lot of > difficutly? I can wind coils etc. but don't > have any transformer slug-tuned cores. > > Tim KA0BTD > J.Birkett, 25, The Strait, LINCOLN. LN2 1JF. (Tel: 01522-520767 ) He had a few in the shop some months ago, failing that he often has old portable radios of 1960s vintage and he does not ask a great deal for them. Great little surplus shop of the old fashioned type....full of all kinds of junk . ( Closed Sun/Mon/Wed. ) Mike. Article: 99894 of rec.radio.amateur.boatanchors From: ehramm@dk3uz.ampr.org (Edmund H. Ramm) Subject: Re: 12V Plate Tubes. References: Message-ID: Date: Thu, 15 Sep 2005 16:07:06 GMT In novatech@eskimo.com (Steven Swift) writes: > [...] > I saw this: > http://www.thamesandkosmos.com/products/ra/ra2.html > [...] > I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. The Radio-Ace is the latest Kosmos Radiomann in disguise. The valve is an ECC82 aka 12AU7. Google for the real thing, and you'll find loads of information, including a circuit diagram and the inevitable modifica- tions and add-ons. 73, Eddi ._._. -- e-mail: dk3uz AT darc DOT de | AMPRNET: dk3uz@db0hht.ampr.org If replying to a Usenet article, please use above e-mail address. Linux/m68k, the best U**x ever to hit an Atari! Article: 99895 of rec.radio.amateur.boatanchors From: Edward Knobloch Subject: Re: INFO: Testing 3B28 tubes References: Message-ID: Date: Thu, 15 Sep 2005 17:45:22 GMT Hi, I was about to write that the Hickok 3B38 settings should be the same as for the 866A, but then I checked my TV-7 and found different settings. I tested a good 3B28 using both settings, and got the same meter deflection. So, testing a 3B28 with 866A settings is valid. One disadvantage of the 3B28 compared to the 866A: the 3B28 uses Xenon gas instead of Mercury vapor, and thus has no visible glow. (Ah, yes, the gentle flickerings as you modulate the Valiant...) 73, Ed Knobloch Bob Rinaldi wrote: > Hello: > > Does anyone have the settings for testing a 3B28 with the Hockok 539B ? > > Thanks, > Bob Article: 99896 of rec.radio.amateur.boatanchors From: "Heytubeguy" Subject: FA:Jennings JCS-250PF fxd caps + more Message-ID: Date: Thu, 15 Sep 2005 23:43:41 GMT 4 Jennings JCS-250 PF fixed vac caps + other stuff as well, see at: http://search.ebay.com/_W0QQfgtpZ1QQfrppZ25QQsassZheytubeguy Tnx for looking, heytubeguy Article: 99897 of rec.radio.amateur.boatanchors From: " Uncle Peter" References: <%eHVe.559$5n4.301@newssvr29.news.prodigy.net> Subject: Re: 1/2 D cell 1.5 ? Message-ID: Date: Thu, 15 Sep 2005 20:22:40 -0400 http://www.armyradio.com/publish/articles/Power_Up/Battery_Numbers.htm BA-3042/u "Henry Kolesnik" wrote in message news:%eHVe.559$5n4.301@newssvr29.news.prodigy.net... > Last weekend at the Mena swapfest I bought a military transistor testet > Model TT-22 made by Abbey Electronics, L.I. NY in 1968. It uses four > Eveready Alkaline 1/2 D cells N0. E94 1.5 volts. I've never seen or heard > of these runts before I got this thing. Google isn't much help. Any tips > or help appreciated. > > -- > > 73 > Hank WD5JFR > > Article: 99898 of rec.radio.amateur.boatanchors Subject: Re: Ge super radio. From: "Jerry McCarty" References: <1125511356.488033.277030@z14g2000cwz.googlegroups.com> Message-ID: Date: Fri, 16 Sep 2005 01:13:00 GMT On 15-Sep-2005, Bob Miller made the following observation: > they were only $38 at Amazon.com, last I checked These would be Super Radio III models which are very impressive for what they are. However, Dana was looking for the i and II versions. Rumor has it the II version runs rings around the III's. Article: 99899 of rec.radio.amateur.boatanchors From: Barry OGrady Subject: Re: 12V Plate Tubes. Date: Fri, 16 Sep 2005 11:22:56 +1000 Message-ID: References: On Thu, 15 Sep 2005 14:31:06 GMT, "COLIN LAMB" wrote: >My project this winter is to build a single tube transmitter into an Altoids >box. I am sure that has been done before, but I plan to build in the entire >power supply and key. > >It should work. Using an old geiger counter tube, I will use a AA battery >for the filament and will first try a 9 volt battery for the plate and >screen. That should be fine. If not, I will use either a 15 volt or 22 >volt battery - but the 9 volt is cheaper. While valves will work with only 9 volts on the plate they are high impedance devices and so you will not get any significant power. > >Power will be low, but having a friend a mile away makes the power >requirement modest. CW only. > >As a kid, I built a one tube broadcast receiver using an old acorn tube and >15 volt battery for the plate. > >Colin K7FM > Barry ===== Home page http://members.iinet.net.au/~barry.og Article: 99900 of rec.radio.amateur.boatanchors From: "kh" Message-ID: <0QMXZWh9EdSr-pn2-6KzPMbqHO8dd@localhost> Subject: Re: How much is an SX-101A worth? References: Date: 16 Sep 2005 01:43:37 GMT On Fri, 9 Sep 2005 01:52:18 UTC, Roger wrote: > > The 101 series is popular, but not a highly sought after item. > All in all, "I think" the price for a later model will run *typically* > in the $300 to $350 range while the A will be some what less. The A is the latest model. The earlier ones are the II's and III's. de ah6gi/4. -- Article: 99901 of rec.radio.amateur.boatanchors Subject: Re: 1/2 D cell 1.5 ? From: Larry References: <%eHVe.559$5n4.301@newssvr29.news.prodigy.net> Message-ID: Date: Thu, 15 Sep 2005 23:46:36 -0400 " Uncle Peter" wrote in news:mfoWe.79973$DW1.35378@fed1read06: > BA-3042/u used on Multimeter AN/ USM - 223 Countermeasure set AN/SLQ - 48 GPS 5 Navstar receiver set AN/ ASN - 149 Flight line test set AN/ ALM - 154 Maintenance facility group AN/ TYA - 28 Test set MK 272 MOD 1 Howitzer medium, 155 mm M - 109 A3 Applications BUT, it's NOT a 1/2-height D cell. Nomenclature Primary ALKALINE Manganese Dioxide battery Nominal Dimensions D: 25.4 mm H: 47.63 mm Nominal Weight 68 gr Nominal Voltage 1.5 V Discharge Load 16.67 Ohm continuously until 0.9 V Cutoff Voltage 0.9 V Terminals 2 Flat Surfaces Operating Temperature Range -20...... +55oC Storage Temperature Range 0...... +20oC Typical Service Life 48 h (20oC) Shelf Life 5 years Jacket Transparent Shrink Sleeve Jacket Color Olive Drab (green) Applicable battery Spec. MIL - B - 49030 Alternative BA-42 Disposal Check with local regulations for proper disposal. BA-42 is a C-cell, methinks..... Look at the Greek webpage: http://www.sunlight.gr/industrial/pdf/BA-3042U.pdf and read all about it.... US Army Ft Gordon training manual for the: 1. TA-341()/TT. The TA 341/TT is a tactical analog telephone. a. Technical characteristics. (1) Voltage requirements. (a) Four BA-42s or BA-3042/Us. http://www.gordon.army.mil/sigbde15/31L/c01lp5.html Yep, here: http://fedcoelectronics.com/detail.tpl?SKU=AM2 Alkaline C cell...7800 maH....1.5V Sorry..... -- Larry Article: 99902 of rec.radio.amateur.boatanchors From: "Brian Goldsmith" References: Subject: Re: RCA AR-88-F "Diversity IF Gain?" Message-ID: Date: Fri, 16 Sep 2005 04:20:06 GMT "AC0CC" wrote I just acquired a RCA AR-88-F receiver in great condition. Can anyone tell me exactly what the additional knob on the front labeled "Diversity IF Gain" does? Does this radio have basically the same circuit as the AR-88D? ***** Yes it does! The Diversity IF Gain control allows the gain of the IF strip to be manually adjusted when three 88Fs are used in RCA DR89,Diversity Communication Receiver.When used as a unit receiver,turn the Diversity Gain control fully clockwise and leave it there.The rear panel output terminals are slightly different between the models. AR88F is covered in TM 11-880 Brian Goldsmith. Article: 99903 of rec.radio.amateur.boatanchors From: "COLIN LAMB" References: Subject: Re: 12V Plate Tubes. Message-ID: Date: Fri, 16 Sep 2005 04:51:21 GMT "While valves will work with only 9 volts on the plate they are high impedance devices and so you will not get any significant power." Depends upon what you mean significant. I just need a couple of milliwatts to go a mile. He has a little cmos oscillator going into a final transistor and keys the final transistor. The cmos oscillator runs constantly at a few milliwatts. I can hear that, even with the final disabled, so it is simply the blowby of a few mw oscillator. Build a tube transmitter with power supply and keyer into an Altoids tin seems significant. Colin K7FM Article: 99904 of rec.radio.amateur.boatanchors Date: Fri, 16 Sep 2005 01:02:33 -0400 From: Bill Subject: Re: T4X-c cab;es sold for outrageious price References: <05sWe.10749$4P5.1977@newsread2.news.pas.earthlink.net> Message-ID: K5VSE wrote: > I can't believe someone paid $127.50 for the inter connect cables for a set > of Drake twins. That's just my opinion, and of course I could be wrong! > > > DRAKE C-LINE CABLES NEW! SWITCHCRAFT WITH LABELS! R-4C > $127.50 Geezus. Some of us hams are like audiophools. I think I have a sheet of those Brady wraparound labels in a junkbox somewhere here that somebody could have taken away from me for $5 if they bothered to ask. Not now! (Yeah, I know those cables tended to be picky about length, etc so don't lecture me about that.) Then again some folks simply have more money than sense and that bolloxes up things for us regular folk so its NOT OK that some Mick does something stupid leaving the rest of us to pay the ultimate price afterwards. -Bill Article: 99905 of rec.radio.amateur.boatanchors Date: Fri, 16 Sep 2005 01:41:52 -0400 From: Bill Subject: Re: 12V Plate Tubes. References: Message-ID: COLIN LAMB wrote: > "While valves will work with only 9 volts on the plate they are high > impedance devices and so you will not get any significant power." > > Depends upon what you mean significant. I just need a couple of milliwatts > to go a mile. He has a little cmos oscillator going into a final transistor > and keys the final transistor. The cmos oscillator runs constantly at a few > milliwatts. I can hear that, even with the final disabled, so it is simply > the blowby of a few mw oscillator. > > Build a tube transmitter with power supply and keyer into an Altoids tin > seems significant. > > Colin K7FM > > > Depends how low you want to go. I worked VK6 from 4 land with 4x2N2222As running about 750 mw out. If I had taken my rcvr to that same relative anemic level, or if the other guy had taken his rcvr or xmtr to that level, its doubtful that my rig would have "worked great". hehe, as a joke, I and another guy decided to nix an obnoxious dx buddy's success in pileups. Among many tricks, one was the signal generator into a random-wire antenna that would effectively kill him a half-mile away. "Hey, do you guys hear that carrier?" You can do wonders with QRP stuff. I don't think the term "significant" really applies. :) -Bill Article: 99906 of rec.radio.amateur.boatanchors From: "COLIN LAMB" References: Subject: Re: 12V Plate Tubes. Message-ID: <7btWe.452$Gg1.30@newsread3.news.pas.earthlink.net> Date: Fri, 16 Sep 2005 05:59:31 GMT Hey, but your qrp signal was significant to the obnoxious dx buddy. A very weak signal coming from Mars would be very significant. Colin K7FM Article: 99907 of rec.radio.amateur.boatanchors Date: Fri, 16 Sep 2005 02:18:56 -0400 From: Bill Subject: Re: 12V Plate Tubes. References: <7btWe.452$Gg1.30@newsread3.news.pas.earthlink.net> Message-ID: COLIN LAMB wrote: > Hey, but your qrp signal was significant to the obnoxious dx buddy. > > A very weak signal coming from Mars would be very significant. > > Colin K7FM > > My story relates...We were in North Carolina on 20 meters. The 'obnoxious buddy' never reported interference from Mars...just that annoying S9 carrier. :) -Bill Article: 99908 of rec.radio.amateur.boatanchors From: "K5VSE" References: <05sWe.10749$4P5.1977@newsread2.news.pas.earthlink.net> Subject: Re: T4X-c cab;es sold for outrageious price Message-ID: Date: Fri, 16 Sep 2005 14:54:43 GMT I got my whole "C" line for $350.00, including a nice set of cables. And the WORKED!!! Got them on the air daily. Only thing I really did was to repaint the cabinets, as they showed normal wear for a rig that old. It just struck me a little strange to see someone pay THAT much for a set of cables. I even got my TR-4 for only $75.00 and use it from the shop pretty near on a daily basis as well. Oh well, some folks, as you say got more money than sense. Have a nice day! -- Mike-K5VSE Formerly WB6VSE, senior tech, amateur division SBE/Linear Systems, Watsonville, CA All out going mail scanned with Norton AntiVirus 2005 APA-220, USS Okanogan, LSD-31, USS Point Defiance On 3.922 nightly Restoring and using Drake Radios! TR-4C, RV-4C, TR-4, T4X-C, R4-C In God We Trust Web site: http://members.tripod.com/sjsharks/index.html Article: 99909 of rec.radio.amateur.boatanchors From: Ian Subject: Eico References: Message-ID: Date: Fri, 16 Sep 2005 13:21:42 -0400 Hi, I recently aquired an EICO signal generator, however there are no probes or manual. Does anyone know if these are available anywhere. Thanks Ian VA3SOF Article: 99910 of rec.radio.amateur.boatanchors Message-ID: <432B1A0B.A1DF695A@earthlink.net> From: "Michael A. Terrell" Subject: Re: Eico References: Date: Fri, 16 Sep 2005 19:15:37 GMT Ian wrote: > > Hi, > I recently aquired an EICO signal generator, however there are no > probes or manual. Does anyone know if these are available anywhere. > > Thanks > Ian > VA3SOF Does it have a model number? -- ? Michael A. Terrell Central Florida Article: 99911 of rec.radio.amateur.boatanchors From: Straydog Subject: Re: 12V Plate Tubes. Date: Fri, 16 Sep 2005 18:20:55 -0400 Message-ID: References: On Wed, 14 Sep 2005, Bill wrote: > Steven Swift wrote: > >> A while back there was a 12v tube thread. >> >> I saw this: >> >> http://www.thamesandkosmos.com/products/ra/ra2.html >> >> advertized in September Scientific American. The ad (on the >> builditplayit.com site) says it uses a "double triode" and >> requires 8-AA batteries (nominally 12V). >> >> I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. >> >> Anyone know? > > Can't speak for the kit but I know some guys have successfully used a plain > old 12AT/AU/AX7 at 12 volts with acceptable results. > > -Bill > Yes, I've done this, too. Also, when I was a kid playing with this stuff, I got a 1T4 to audio oscillate at 7 volts on the plate. Article: 99912 of rec.radio.amateur.boatanchors From: "Steve H" References: <1126855093.569254.226690@g43g2000cwa.googlegroups.com> Subject: Re: need QST archives from beginning to transistors era Date: Sat, 17 Sep 2005 09:02:10 +0100 Message-ID: <432bcd80$1_3@mk-nntp-2.news.uk.tiscali.com> http://www.arrl.org/catalog/index.php3?category=CD-ROMs $399 for the full set Steve H "snaga" wrote in message news:1126855093.569254.226690@g43g2000cwa.googlegroups.com... > Hi ! > > I'm a beginning homebuilder from Russia and i'm eager for information > on ancient regenerative recievers. I heard what somethere CD archives > of QST magazine do exist. Can one of you put them online for a friend > of mine with unlimited download capability (i'm starved on bytes) ? > > I tried library but it has very few and late of them, and scanning is > expensive. > > Please reply to snaga {ear sign} inbox.ru , as i may be unable to read > the groups. > Article: 99913 of rec.radio.amateur.boatanchors From: "k9gco" Subject: FS:Kenwood TS-520S Date: Sat, 17 Sep 2005 07:36:32 -0500 Message-ID: This is a multi-part message in MIME format. ------=_NextPart_000_0833_01C5BB5A.865F7220 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have a TS-520S condition (9+) that has good performance on all bands. = May be seen at http://home.grics.net/rchowerter/index.htm . Priced at = $250 plus shipping charges. ------=_NextPart_000_0833_01C5BB5A.865F7220 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I = have a TS-520S=20 condition (9+) that has good performance on all bands.  May be seen = at http://home.grics.net= /rchowerter/index.htm=20  .  Priced at $250 plus shipping charges. ------=_NextPart_000_0833_01C5BB5A.865F7220-- Article: 99914 of rec.radio.amateur.boatanchors From: "Charles" Subject: FS Collins 75A3 Message-ID: Date: Sat, 17 Sep 2005 08:32:00 -0500 In extremely nice condition. Has product detector and am filter. Nice white lettering. Original manual. Can send pictures. Asking $650. Thanks Article: 99915 of rec.radio.amateur.boatanchors From: JC Subject: Tons of stuff Date: Sat, 17 Sep 2005 12:42:20 -0400 Message-ID: <11iohre6qkln953@corp.supernews.com> I have a couple of questions for the group regarding selling older equipment. I recently returned from Iraq and while I was there my license expired. I don't have the time to renew at the moment due to massive repairs of the house - empty for 14 months - and I am again looking for work, so the license is not a priority ATT. Anyway, I need advice in the best way to unload a lot of older Kenwood, Heathkit, Hallicrafters, Drake transveivers, receivers, transmitters, test equipment, etc. Some verified working, some worked when put in storage, some needs repair, re-capping, some parts only. Besides this group, what are other successful methods of selling this stuff, EBay being a last resort. Regards, John C. P.S. Please reply to the group. Thanks. Article: 99916 of rec.radio.amateur.boatanchors From: "Floyd Sense" References: <11iohre6qkln953@corp.supernews.com> Subject: Re: Tons of stuff Message-ID: Date: Sat, 17 Sep 2005 13:24:49 -0400 I don't know why you would so easily dismiss eBay, the single most effective way of selling ANYTHING. You will, by far, reach the largest pool of potential buyers there. I've sold a ton of stuff on eBay over the past few years with very few problems. I also like to use the QTH.com classified ads, and QRZ.com and eHam ads are effective as well. The problem with those avenues is that you have to deal with a lot of tire kickers and others who have no intention of buying anything. If you don't already have a Paypal account, it would be a good idea to open one. You can move a lot of gear very quickly if you're not always waiting for a check or money order to come in the mail. Granted that Paypal will cost you a fee, but just bump the prices up accordingly instead of insisting that the buyer pay the fee. If you're near a large metro area, you might also check out Craig's list. That's free to list and sell, but will reach a smaller audience than the other methods. But, it might be possible to avoid shipping hassles as most Craig's list transactions involve a face-to-face by buyer and seller. Glad to hear that you returned from Iraq safely. 73, K8AC "JC" wrote in message news:11iohre6qkln953@corp.supernews.com... >I have a couple of questions for the group regarding selling older >equipment. > > I recently returned from Iraq and while I was there my license expired. I > don't have the time to renew at the moment due to massive repairs of the > house - empty for 14 months - and I am again looking for work, so the > license is not a priority ATT. > > Anyway, I need advice in the best way to unload a lot of older Kenwood, > Heathkit, Hallicrafters, Drake transveivers, receivers, transmitters, test > equipment, etc. Some verified working, some worked when put in storage, > some needs repair, re-capping, some parts only. > > Besides this group, what are other successful methods of selling this > stuff, EBay being a last resort. > > Regards, > > John C. > > P.S. Please reply to the group. Thanks. Article: 99917 of rec.radio.amateur.boatanchors From: JC Subject: Re: Tons of stuff Date: Sat, 17 Sep 2005 13:59:39 -0400 Message-ID: <11iomccifdum816@corp.supernews.com> References: <11iohre6qkln953@corp.supernews.com> Floyd Sense wrote: > I don't know why you would so easily dismiss eBay, the single most effective > way of selling ANYTHING. You will, by far, reach the largest pool of > potential buyers there. I've sold a ton of stuff on eBay over the past few > years with very few problems. > > I also like to use the QTH.com classified ads, and QRZ.com and eHam ads are > effective as well. The problem with those avenues is that you have to deal > with a lot of tire kickers and others who have no intention of buying > anything. If you don't already have a Paypal account, it would be a good > idea to open one. You can move a lot of gear very quickly if you're not > always waiting for a check or money order to come in the mail. Granted that > Paypal will cost you a fee, but just bump the prices up accordingly instead > of insisting that the buyer pay the fee. > > If you're near a large metro area, you might also check out Craig's list. > That's free to list and sell, but will reach a smaller audience than the > other methods. But, it might be possible to avoid shipping hassles as most > Craig's list transactions involve a face-to-face by buyer and seller. > > Glad to hear that you returned from Iraq safely. > > 73, K8AC > Thanks, Its great to be back! There wasn't a whole lot of fun over there. I have a PayPal account and I'm in the process of getting verified. Its been unused for well over a year. The only reason I'm dismissing EBay right now is that I noticed yesterday that an awful lot of stuff (I used Time: Ending Soonest sort method) doesn't seem to get any bids, so it didn't look as effective as it used to be. As a matter of fact, probably 25% of my better acquisitions came from EBay, most from 1999 thru 2002. Competition seemed a lot tougher then, but then again, the economy is much tougher now. I appreciate the quick reply and I'll look into your suggestions and get a list together soon and post it here and r.r.a.equipment. I guess the other thing to do is spend some time reviewing these advertisement areas and see what various equipment average pricing is nowadays. Regards, John C. Article: 99918 of rec.radio.amateur.boatanchors From: "Reg Edwards" Subject: Re: FS:Kenwood TS-520S Date: Sat, 17 Sep 2005 18:09:48 +0000 (UTC) Message-ID: References: I once had a TS-520S. It was a damn good transceiver. But I experimentally much-modified it over the years until, hardly improved, I had to give it away, still in working order. Good to hear it is still 'doing the rounds'. ---- Reg, G4FGQ Article: 99919 of rec.radio.amateur.boatanchors From: Ron in Radio Heaven Subject: Re: Tons of stuff References: <11iohre6qkln953@corp.supernews.com> <11iomccifdum816@corp.supernews.com> Message-ID: Date: Sat, 17 Sep 2005 19:28:34 GMT JC wrote: > The only reason I'm dismissing EBay right now is that I noticed > yesterday that an awful lot of stuff (I used Time: Ending Soonest sort > method) doesn't seem to get any bids, so it didn't look as effective as > it used to be I would suggest looking at completed items instead of ending soonest. Most smart people wait until the last few seconds to bid so looking at completed items is the only way to know what the market is. Welcome back. 73, Ron http://radioheaven.homestead.com Article: 99920 of rec.radio.amateur.boatanchors From: "Charles" References: <11iohre6qkln953@corp.supernews.com> Subject: Re: Tons of stuff Message-ID: Date: Sat, 17 Sep 2005 15:09:34 -0500 I would make a detailed list of equipment with electrical and physical condition and list the price you will accept and list it here and other Boatanchors Reflectors. Just my thoughts. I think you would do well. Charles "David Stinson" wrote in message news:Dn_We.11321$4P5.4@newsread2.news.pas.earthlink.net... > JC wrote: > > >> Besides this group, what are other successful methods of selling this >> stuff, EBay being a last resort. > > The operative term in your question is "successful." > What do you call "success?" If you want to *give* it away > to someone cheap after you've dealt with a few dozen > tire-kickers, you can list it here or take it to a hamfest. > If you want to actually get what it's worth, > Ebay is the only way. > 73 Dave S. Article: 99921 of rec.radio.amateur.boatanchors From: "jm" References: <11iohre6qkln953@corp.supernews.com> Subject: Re: Tons of stuff Message-ID: Date: Sat, 17 Sep 2005 19:07:42 -0400 Just "how" long has your license been expired? You have up to 2 years to renew without retesting. Renewing is no big deal. Just thought I'd throw that in - since I didn't see you mention how long the license was out. jm Article: 99922 of rec.radio.amateur.boatanchors From: Dr. Anton T. Squeegee Subject: Re: Tons of stuff Date: Sat, 17 Sep 2005 17:08:04 -0700 Message-ID: References: <11iohre6qkln953@corp.supernews.com> In article <11iohre6qkln953@corp.supernews.com>, user@example.net says... > I have a couple of questions for the group regarding selling older > equipment. > > I recently returned from Iraq and while I was there my license expired. > I don't have the time to renew at the moment due to massive repairs of > the house - empty for 14 months - and I am again looking for work, so > the license is not a priority ATT. > > Anyway, I need advice in the best way to unload a lot of older Kenwood, > Heathkit, Hallicrafters, Drake transveivers, receivers, transmitters, > test equipment, etc. Some verified working, some worked when put in > storage, some needs repair, re-capping, some parts only. Sounds to me like you're in a great position to make the shoppers at whatever ham radio swap meets are nearby to you awfully happy. Check for upcoming hamfests/swap events at http://www.arrl.org and set yourself up for the next one in your area. If you've never sold at a ham swap before, I would be happy to offer further advice (as I've been buying and selling at such swaps for 27 years or so). Keep the peace(es). -- Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute. (Known to some as Bruce Lane, ARS KC7GR, kyrrin (a/t) bluefeathertech[d=o=t]calm -- www.bluefeathertech.com "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?" Article: 99923 of rec.radio.amateur.boatanchors Message-ID: <432CB5B8.B8626B5F@shaw.ca> From: Irv Finkleman Subject: Re: FS:Kenwood TS-520S References: Date: Sun, 18 Sep 2005 00:32:40 GMT Reg Edwards wrote: > > I once had a TS-520S. It was a damn good transceiver. But I > experimentally much-modified it over the years until, hardly improved, > I had to give it away, still in working order. > > Good to hear it is still 'doing the rounds'. > ---- > Reg, G4FGQ I still run one, with the DG-5 freq display. I picked it up used and dropped but it took very little work to get it up and running. I used to have a TS-820s and a Yaesu FT-902DM, but have found that I can do with out them. Likewise, I got rid of my Delhi tower, Ham4 Rotor, and TA-33Jr and now use a 33 foot pine pole stuck in a hole in the ground with home brew wire antennae. I haven't really noticed any significant improvement other than simplicity! I figure the TS-520S will run forever, and if something goes wrong it is easy to fix. Irv VE6BP -- -------------------------------------- Diagnosed Type II Diabetes March 5 2001 Beating it with diet and exercise! 297/215/210 (to be revised lower) 58"/43"(!)/44" (already lower too!) -------------------------------------- Visit my HomePage at http://members.shaw.ca/finkirv/index.html Visit my Baby Sofia website at http://members.shaw.ca/finkirv4/index.htm Visit my OLDTIMERS website at http://members.shaw.ca/finkirv5/index.htm -------------------- Irv Finkleman, Grampa/Ex-Navy/Old Fart/Ham Radio VE6BP Calgary, Alberta, Canada Article: 99924 of rec.radio.amateur.boatanchors From: kludge@panix.com (Scott Dorsey) Subject: Re: Ge super radio. Date: 17 Sep 2005 21:05:32 -0400 Message-ID: References: <1125511356.488033.277030@z14g2000cwz.googlegroups.com> <7nepi11l4t6u0vi9en3k2tjcg8b8b36ac0@4ax.com> Bob Miller wrote: > >Didn't know the IIs are better. I have the III, and it seems >comparable to my CCradio, but nothing special in how well it picks up >weak stations. Sure sounds good, though. The RF section on the III is pretty dreadful. The I and II are really quite good performers on AM. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." Article: 99925 of rec.radio.amateur.boatanchors From: "Brian Goldsmith" References: Subject: Re: RCA AR-88-F "Diversity IF Gain?" Message-ID: Date: Sun, 18 Sep 2005 05:59:11 GMT "AC0CC" wrote Thanks Brian for the info. Anyone know where I can get this technical manual TM 11-880? -- AC0CC ***Brian replied to your reply,your email address is bouncing. Brian Goldsmith. Article: 99926 of rec.radio.amateur.boatanchors From: "SOMMERGIBILE" Subject: A lot of good diagrams Date: Sun, 18 Sep 2005 10:00:58 +0200 Message-ID: <432d21f5$0$8486$5fc30a8@news.tiscali.it> on: http://web.tiscali.it/am2zy/index.html Article: 99927 of rec.radio.amateur.boatanchors From: kludge@panix.com (Scott Dorsey) Subject: Re: WTB: 2.5 ohm speaker for RCA AR-88 Receiver Date: 18 Sep 2005 08:54:16 -0400 Message-ID: References: AC0CC wrote: > >Looking for 2.5 ohm speaker that AR-88 receiver requires. I understand >most of these ended up in England. Original speaker in case would be >nice. How about a Quam? --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." Article: 99928 of rec.radio.amateur.boatanchors From: "John Ferrell" References: Subject: Re: 12V Plate Tubes. Message-ID: <5%dXe.68$vw6.22@newsread1.news.atl.earthlink.net> Date: Sun, 18 Sep 2005 13:31:45 GMT I was not aware of any interest in 12 volt plate tubes. In my backlog of things going to EBAY I have a Gonset shortwave converter that used this technology. I would consider $15 + shipping to be a good offer. de W8CCW in North Carolina -- John Ferrell http://DixieNC.US "Steven Swift" wrote in message news:dgailr$m3o$1@eskinews.eskimo.com... >A while back there was a 12v tube thread. > > I saw this: > > http://www.thamesandkosmos.com/products/ra/ra2.html > > advertized in September Scientific American. The ad (on the > builditplayit.com site) says it uses a "double triode" and > requires 8-AA batteries (nominally 12V). > > I wonder if it is a 12V tube kit. Perhaps a 12AE7 or similar. > > Anyone know? > -- > 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: 99929 of rec.radio.amateur.boatanchors From: "Chris Bowne" Subject: BA List Down? Date: Sun, 18 Sep 2005 14:22:38 -0400 Message-ID: <11irc3fde6aas64@corp.supernews.com> Is the BA mailing list (boatanchors@theporch.com) down? Have not seen any posts in a few days, and attempts to post to it bounce on timeout errors >from the porch list server. Article: 99930 of rec.radio.amateur.boatanchors From: Edward Knobloch Subject: Re: BA List Down? References: <11irc3fde6aas64@corp.supernews.com> Message-ID: Date: Sun, 18 Sep 2005 19:51:04 GMT Hi, It has been petty inactive, but I received a couple of Boatanchors Reflector emails yesterday, and one this afternoon. I've been browsing the member archives at www.theporch.com 73, Ed Knobloch Chris Bowne wrote: > Is the BA mailing list (boatanchors@theporch.com) down? Have not seen any > posts in a few days, and attempts to post to it bounce on timeout errors > from the porch list server. > > Article: 99931 of rec.radio.amateur.boatanchors From: kludge@panix.com (Scott Dorsey) Subject: Re: need QST archives from beginning to transistors era Date: 18 Sep 2005 18:27:19 -0400 Message-ID: References: <1126855093.569254.226690@g43g2000cwa.googlegroups.com> snaga wrote: > >I'm a beginning homebuilder from Russia and i'm eager for information >on ancient regenerative recievers. I heard what somethere CD archives >of QST magazine do exist. Can one of you put them online for a friend >of mine with unlimited download capability (i'm starved on bytes) ? > >I tried library but it has very few and late of them, and scanning is >expensive. Ask the library if they have an old copy of the ARRL Mobile Manual. It has a number of portable regenerative receiver designs that are pretty good. Also, don't forget Soviet Radioteknika. They did some fun regen receiver designs well into the seventies, even some solid state ones. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." Article: 99932 of rec.radio.amateur.boatanchors From: "W9CAR" Subject: FS: ICOM IC 706 MKIIG Message-ID: Date: Sun, 18 Sep 2005 19:02:48 -0500 FS: ICOM IC 706 MK IIG THIS RADIO IS IN EXCELLANT WORKING CONDITION. IT INCLUDES BOX, MANUAL, HAND MIC, MOBILE BRACKET, POWER CORD, SEPARATION CABLE & BRACKET ETC NON SMOKING ENVIRONMENT !! $725.00 SHIPPED & INSURED TO YOUR DOOR. W9CAR@CHARTER.NET