Article: 99835 of rec.radio.amateur.boatanchors From: Dave Subject: FS: "Rare" Lysco Transmaster 600S Transmitter Message-ID: Date: Wed, 07 Sep 2005 09:42:05 -0700 Lysco Transmaster 600S Transmitter................$350 plus shipping I will ship overseas These do not show up very often and the model with the modulator is even more difficult to find. This is a 160-10 meter AM and CW transmitter that was made from 1951-1953. This is a 7 tube transmitter that uses an 807 for the final. Input power is 35 watts. The transmitter has a built-in VFO and can also be crystal controlled. I used this transmitter with an NC-173 to work CW replaced it with a Ranger I about 5 years ago. I have not used it since and feel it is time for someone else to enjoy it. The unit is in in very nice shape cosmetically and put outs around 20 watts on CW. I never ran it on AM so I do not know the status of the modulator. The unit has no dents or dings. The off switch has a key type switch which may or may not be original. Includes a photocopy of the manual. http://members.cox.net/radiodx3/lyscoxmtr.JPG http://members.cox.net/radiodx3/lyscoxmtr2.JPG http://members.cox.net/radiodx3/lyscoxmtr3.JPG http://members.cox.net/radiodx3/lyscoxmtr4.JPG http://members.cox.net/radiodx3/lyscoxmtr5.JPG http://members.cox.net/radiodx3/lyscoxmtr6.JPG http://members.cox.net/radiodx3/lyscoxmtr7.JPG Thanks for looking, Dave N7RK *********************************************************** Dave N7RK Boatanchors Home Page: http://members.cox.net/n7rk Phoenix, Arizona *DXCC Honor Roll* *WAZ#22 - 75 Meter SSB* ex-XE2/N7RK, N7RK/ZB2, VK2ERK, ZM0AJN, WB6NRK, WN6IWX Boatanchor and Antique Radio Collector Article: 99836 of rec.radio.amateur.boatanchors From: ritchi50@optonline.net Subject: WTB: Collins KWM-2A Round Emblem Message-ID: Date: Wed, 07 Sep 2005 17:28:49 -0400 WTB: Collins KWM-2A Round Emblem Looking for one that works well, Don't care how the front panel looks or how the cabinet looks. Just need one that works well. Please leave price and condition through email ritchi50@optonline.net Article: 99837 of rec.radio.amateur.boatanchors Date: Wed, 07 Sep 2005 17:33:52 -0400 From: -ex- Subject: Re: Boat Anchor Manuals References: <1126123626.168675.93240@g49g2000cwa.googlegroups.com> Message-ID: <74d39$431f5cd9$4232bdea$9897@COQUI.NET> w4pqw@cox.net wrote: > I can never read BAMA manuals,cannot read their mirrow sites...I > download all these programs that are supposed to handle it..never > happens.....I need a manual or copy of the TRIO 9R59D receiver.Be glad > to pay cost of manual or schematic ..Thanks Harold W4PQW (I could go > to night school and study to be a computer "GURU".At my age ,not > likely, hi.) > See here: http://www.pembers.freeserve.co.uk/Shortwave/9R-59/index.html Article: 99838 of rec.radio.amateur.boatanchors From: "Bill & Suzie Whatley" Subject: Re: Boat Anchor Manuals Date: Wed, 7 Sep 2005 15:41:48 -0600 Message-ID: <11hunlfo7drjsf9@corp.supernews.com> References: <1126123626.168675.93240@g49g2000cwa.googlegroups.com> It is on the BAMA site. Ya just have to know that Trio is Kenwood. I will send the printed document to the operator who requested it. 73, WA5VRL Willis Article: 99839 of rec.radio.amateur.boatanchors From: "kh" Message-ID: <0QMXZWh9EdSr-pn2-7y2PC6uoLSgF@localhost> Subject: Re: Dayton and other Hamfest References: <0QMXZWh9EdSr-pn2-g8BiwdJrdvdl@localhost> Date: 8 Sep 2005 01:24:19 GMT On Wed, 7 Sep 2005 01:32:44 UTC, Chuck Harris wrote: > kh wrote: > > > Speaking of Gaithersburg, if you google for "R-9xx Collins", you'll > > get a page that discusses the fabled R-390A that had a factory built > > LED digital display in place of the Veeder-Root mechanical counter. > > > > About 30 years ago I saw one of these for sale at Gaithersburg. It > > wasn't a homebrew job, the vendor had the manual for it, I recall > > that he fanned it and showed folks the circuit diagrams. That's > > diagrams, plural. > > > > So you Collins types, a piece of trivia, the "R-9xx" is real. I was > > "this close" to it. I wonder where it is today. I bet that an > > R-9xx would make an SX-88 or KW-1 look cheap. > > One of the ways I make a living is designing prototype equipment for > the US Army. I have in the past modified items that were in the usual > military supply stream to add features that were desired by my customer. > > The unit you saw could very well be a modification that was done by some > nameless vendor, like myself. Collins, or any of the other R390 manufacturers > likely had nothing to do with it. > Yes. Or not. Who knows? Did you check out the R-390 website? They speculate as to the existance of the R-9xx, a fabled variant of the R-390A that came with an LED digital readout. I'm verifying that such a beast exists. I . saw . it. There is an R-9xx, an R-390 variation with an LED display in place of the Veeder-Root counter. How did it come about? Who built it? Donno. I can say that it did *not* look home brew, nor did it appear to be an engineering prototype in the sense of a "proof of concept". It had a metal bezel that was well finished and the vendor had a thick technical manual for it. He fanned the pages and showed the schematic diagrams. I didn't say that Collins made it. I said that it is documented on a site dedicated to the R-390 and you can find it by searching for "Collins" and "R-390" or go to http://R-390A.NET Obviously there were not hundreds of these things made. It is also unlikely that there was only ONE, a one-off built in a lab. I'm *guessing* that there were several, perhaps as many as a few dozen built, probably for NSA, but that is *guessing*. If the customer was NSA, that would explain why few have "escaped" to the wild. I saw it at the Gaithersburg Hamfest in the mid-1970's. I only saw one so that is all I can testify to. There are other legendary receivers, some may be fables such as the Signal/One CR-1500 which was pictured in ads but has not been seen since. Others, such as the Central Electronics 100R receiver designed by Joe Batchelor, exist as production prototype models. This is documented in the ARRL book on boatanchors. de ah6gi/4 Article: 99840 of rec.radio.amateur.boatanchors From: "Harold Ramis as the Beaver" References: Subject: Re: Hammarlund/Hallicrafters SW Receiver Message-ID: Date: Thu, 08 Sep 2005 02:54:19 GMT What part of the country are you in? Maybe there is a hamfest near. Sure beats shipping costs. "Count Floyd" wrote in message news:wNXq1lnvlQd7-pn2-xSqkTRQFufvk@localhost... > Looking for an older SW rig, not on ebay. Trying to relive some of my > youth! > TIA > -- > Article: 99841 of rec.radio.amateur.boatanchors From: "Harold Ramis as the Beaver" References: Subject: Re: Hammarlund/Hallicrafters SW Receiver Message-ID: Date: Thu, 08 Sep 2005 14:35:33 GMT Right up the road this weekend : PCARS Melbourne Hamfest Platinum Coast Amateur Radio Society http://www.pcars.org Talk-In: 146.850 -600 no tone during the day Contact: Jeff Hildreth, KG4IPO 660 Denise Drive Melbourne, FL 32935 Phone: 321-258-7065 Email: kg4ipo@cfl.rr.com "Count Floyd" wrote in message news:wNXq1lnvlQd7-pn2-C1YVsBMTWSco@localhost... > On Thu, 8 Sep 2005 02:54:19 UTC, "Harold Ramis as the Beaver" > wrote: > >> What part of the country are you in? >> Maybe there is a hamfest near. >> Sure beats shipping costs. >> >> "Count Floyd" wrote in message >> news:wNXq1lnvlQd7-pn2-xSqkTRQFufvk@localhost... >> > Looking for an older SW rig, not on ebay. Trying to relive some of my >> > youth! >> > TIA > Palm Beach County. I have been looking on the NG, but have not heard > about one around here. > > -- > Article: 99842 of rec.radio.amateur.boatanchors From: "Dale Parfitt" References: Subject: Re: Hammarlund/Hallicrafters SW Receiver Message-ID: Date: Thu, 08 Sep 2005 17:35:44 GMT "Count Floyd" wrote in message news:wNXq1lnvlQd7-pn2-C1YVsBMTWSco@localhost... > On Thu, 8 Sep 2005 02:54:19 UTC, "Harold Ramis as the Beaver" > wrote: > >> What part of the country are you in? >> Maybe there is a hamfest near. >> Sure beats shipping costs. >> >> "Count Floyd" wrote in message >> news:wNXq1lnvlQd7-pn2-xSqkTRQFufvk@localhost... >> > Looking for an older SW rig, not on ebay. Trying to relive some of my >> > youth! >> > TIA > Palm Beach County. I have been looking on the NG, but have not heard > about one around here. I think the Melbourne 'fest is this weekend- excellent gathering. Dale W4OP Article: 99843 of rec.radio.amateur.boatanchors From: "Steve H" Subject: FA Rare bulgin plugs and sockets etc. Date: Thu, 8 Sep 2005 23:27:20 +0100 Message-ID: <4320bac5$1_2@mk-nntp-2.news.uk.tiscali.com> http://search.ebay.co.uk/_W0QQsassZuktelecom Steve H Article: 99844 of rec.radio.amateur.boatanchors From: "Dale Parfitt" References: Subject: Re: Hammarlund/Hallicrafters SW Receiver Message-ID: <4_3Ue.2204$hB2.560@trnddc08> Date: Thu, 08 Sep 2005 23:40:48 GMT > Are you also a fan of SCTV? I noticed your handle there, comes from > that episode with John Candy and Harold Ramis. But I thought that > Candy played the Beaver, and Ramis was Whitey! Joe Flaherty played > Ward and Catherine O'Hara played June, with Eugene Levy as Wally. > Great stuff! Just heard an interview with Eugene Levy on PBR last night- as crazy as ever. SCTV is on Friday nights- TV Land? not sure. Better than SNL ever was. Dale W4OP Article: 99845 of rec.radio.amateur.boatanchors From: "Harold Ramis as the Beaver" References: Subject: Re: Hammarlund/Hallicrafters SW Receiver Message-ID: Date: Fri, 09 Sep 2005 00:21:31 GMT Why yes! And greetings from Doctor Tounge's 3D house of Ham Radio ! "Count Floyd" wrote in message news:wNXq1lnvlQd7-pn2-7CE7u5wmmdPt@localhost... > On Thu, 8 Sep 2005 14:35:33 UTC, "Harold Ramis as the Beaver" > wrote: > >> Right up the road this weekend : >> >> PCARS Melbourne Hamfest >> Platinum Coast Amateur Radio Society >> http://www.pcars.org >> Talk-In: 146.850 -600 no tone during the day >> Contact: Jeff Hildreth, KG4IPO >> 660 Denise Drive >> Melbourne, FL 32935 >> Phone: 321-258-7065 >> Email: kg4ipo@cfl.rr.com > > Are you also a fan of SCTV? I noticed your handle there, comes from > that episode with John Candy and Harold Ramis. But I thought that > Candy played the Beaver, and Ramis was Whitey! Joe Flaherty played > Ward and Catherine O'Hara played June, with Eugene Levy as Wally. > Great stuff! Article: 99846 of rec.radio.amateur.boatanchors From: ROBCO@OPTONLINE.NET Subject: HEATHKIT SB-303 PARTS Message-ID: <81m1i1hnel7i3t30bqe55rav8t3385rmdb@4ax.com> Date: Thu, 08 Sep 2005 20:45:41 -0400 Have some parts from an SB-303...most of the controls....the power transformer, s-meter//..(.het osc)..(rf)....(mixer) & (antenna) boards...that's probably about all that's left..all believed to be working, but I was only able to test the s-meter (and if your interested in the transformer I will test it)...e-mail me for your wants please at robco@optonline.net 73....Bob Article: 99847 of rec.radio.amateur.boatanchors From: ROBCO@OPTONLINE.NET Subject: HEATHKIT SB-303 Message-ID: Date: Thu, 08 Sep 2005 20:51:11 -0400 Reference to the last post, also have the cabinet...73..Bob Article: 99848 of rec.radio.amateur.boatanchors From: Roger Subject: Re: How much is an SX-101A worth? Message-ID: References: Date: Thu, 08 Sep 2005 21:52:18 -0400 On Mon, 05 Sep 2005 21:16:04 GMT, "Antonio Vernucci" wrote: >An Hallicrafters SX-101A in perfect conditions with original manual. How much is it worth? I would tend to say 350$. Is that right? You've already received a number of answers, but I'll add one more. "Paid" prices vary widely as does the actual equipment condition vs the stated condition. Perfect isn't really perfect, but falls a couple of notches down from Museum quality and like new. Beautiful jobs of restoration some times go for quite a bit less than a bit worn, but stock rig. Other times they are just what the purchaser was looking for. Some of the old rigs still work well if they were kept in use, but it's rare to find something of the 101A, MK II, or MK-III that doesn't need to have a number of the capacitors replaced. 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. Still, the market is fickle as are buyers and those prices may run from half that to around $400. I don't remember seeing any 101s of any suffix going for more than that. So, strictly as a personal opinion I'd say $350 for a 101A is a tad high, but there is nothing wrong in trying for it. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com > >Thanks > >Tony, I0JX Article: 99849 of rec.radio.amateur.boatanchors From: Bob Subject: test..test Message-ID: Date: Fri, 09 Sep 2005 13:47:57 -0400 test test Article: 99850 of rec.radio.amateur.boatanchors From: chris+news@suslowicz.org (Chris Suslowicz) Subject: Re: test..test Date: Fri, 09 Sep 2005 19:19:45 +0100 Message-ID: References: In article , Bob wrote: > test test Can't hear anything, check your HT fuses. (And this is not a test newsgroup BTW.) Chris. -- Q: How many roadies does it take to change a lightbulb? A: One! One Two! One Two! One One One..... Article: 99851 of rec.radio.amateur.boatanchors From: "Antonio Vernucci" References: Subject: Re: How much is an SX-101A worth? Message-ID: Date: Fri, 09 Sep 2005 18:37:29 GMT Thanks to all for help Tony I0JX "Roger" ha scritto nel messaggio = news:dvp1i1liuole97mr32cmcu05ribs91np62@4ax.com... > On Mon, 05 Sep 2005 21:16:04 GMT, "Antonio Vernucci" > wrote: >=20 > >An Hallicrafters SX-101A in perfect conditions with original manual. = How much is it worth? I would tend to say 350$. Is that right? >=20 > You've already received a number of answers, but I'll add one more. >=20 > "Paid" prices vary widely as does the actual equipment condition vs > the stated condition. Perfect isn't really perfect, but falls a > couple of notches down from Museum quality and like new. > Beautiful jobs of restoration some times go for quite a bit less than > a bit worn, but stock rig. Other times they are just what the > purchaser was looking for. >=20 > Some of the old rigs still work well if they were kept in use, but > it's rare to find something of the 101A, MK II, or MK-III that doesn't > need to have a number of the capacitors replaced. >=20 > 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. Still, > the market is fickle as are buyers and those prices may run from half > that to around $400. I don't remember seeing any 101s of any suffix > going for more than that. >=20 > So, strictly as a personal opinion I'd say $350 for a 101A is a tad > high, but there is nothing wrong in trying for it. >=20 > Roger Halstead (K8RI & ARRL life member) > (N833R, S# CD-2 Worlds oldest Debonair) > www.rogerhalstead.com >=20 > > > >Thanks > > > >Tony, I0JX Article: 99852 of rec.radio.amateur.boatanchors From: Edward Knobloch Subject: Tube Socket Source (for Nuvistors, etc.) Message-ID: Date: Fri, 09 Sep 2005 21:02:08 GMT Hi, Gang I've recntly bought some "New Old Stock" tube sockets from www.electronicsurplus.com in Cleveland. Here is my report: I was pleased with the Cinch Nuvistor sockets for $.79 each, P/N 5NS. They are chassis mount, with what appears to be polyethylene insulation. Their site says they have 924 in stock. I was also pleased with the Cinch phenolic 7 pin miniature sockets with shield bases for $.45 P/N PT-172 (They called them "National", but they weren't really sockets made by National). Only moderately pleased with the Cinch ceramic 7 pin miniature sockets, P/N S0101C (due to tarnishing of the shield bases), for $1.39. The ceramic itself was in good condition. I bought some Amphenol sockets, "7 pin w/o center hole", P/N 6-199 suitable for type 1625 tubes, for $2.50. The sockets are perfect, but I think I paid too much for phenolic sockets. I also bought some Amphenol 9 pin "octal type" phenolic sockets, P/N 9-211 for $1 each. I thought they would be the type that I could remove the mounting flange from, (useful for making 9 pin plugs), but the flange looks permanent. Oh well, good for the junk box, anyway. 73, Ed Knobloch Article: 99853 of rec.radio.amateur.boatanchors From: Michael Crestohl Subject: FS: Dow-Key and other Antenna Relay Switches, various voltages Message-ID: <9824i1pd264guc5n9d0lso25nmajb46gsk@4ax.com> Date: Fri, 09 Sep 2005 22:13:39 GMT FOR SALE: Antenna Switch/ Transmit/Receive Switch I have several of these that are surplus to my needs. All are tested working and clean. DOW KEY : Part number: 77- 220232 7307 Operating Voltage: 28 VDC Connectors: BNC-Female connectors. Comments: Apparently never used (no solder traces on electromagnet terminals) Price: $20.00 Part number: 84-BSN Operating Voltage: 48 VDC Connectors: N-Female Price: $20.00 60-222542 220 Volt DC Connectors: Type N Price: $30.00 Other: Advance Electric & Relay Operating Voltage: 120 VAC Connectors: Type N Price: $20.00 Manufacturer: Amphenol Part number: 17-10242-3 Operating Voltage: 26 VDC Connectors: N-Female Comments: New in factory-sealed bag. Price: $15.00 Manufacturer: Danbury Knudson for Motorola Part number: 80C4298 Operating Voltage: 6 VDC Connectors: 1 solder 2 BNC-Female Comments: New in factory-sealed bag. Price: $15.00 Manufacturer: Sperry Products, Danbury Knudson Part number: R-142S CHB005AO Operating Voltage: 12VDC, Connectors: SO-239/BNC-Male, Solder tabs. Price: $20.00 Plus postage. If interested please reply by e-mail. 73, W1RC w1rc*at*verizon*dot*net Article: 99854 of rec.radio.amateur.boatanchors From: "Bill K" Subject: Help, manual for TS-375A/U VTVM Message-ID: Date: Fri, 9 Sep 2005 22:09:43 -0400 looking for a manual for a military TS-375A/U VTVM tnx Bill, VE3JHU Article: 99855 of rec.radio.amateur.boatanchors From: " Uncle Peter" References: Subject: Re: Hammarlund/Hallicrafters SW Receiver Message-ID: Date: Sat, 10 Sep 2005 08:49:09 -0400 "Count Floyd" wrote in message news:wNXq1lnvlQd7-pn2-xSqkTRQFufvk@localhost... > Looking for an older SW rig, not on ebay. Trying to relive some of my > youth! > TIA > -- > Been watching too many SCTV reruns! Article: 99856 of rec.radio.amateur.boatanchors From: "Charlie Hugg" Subject: FA Lots of Vintage Gear/Ending today Message-ID: Date: Sat, 10 Sep 2005 09:49:07 -0500 Please see my auctions for lots of Vintage Gear including BC-457A,BC-459A, ARC5s, Signal Shifter, SP-600 Cabinet, More... Auctions are over this weekend. http://search.ebay.com/_W0QQfgtpZ1QQfrppZ25QQsassZhugQ2daQ2dbug Thanks, Charlie Hugg, K5MBX Article: 99857 of rec.radio.amateur.boatanchors From: ritchi50@optonline.net Subject: WTB: Nye viking RFM-003 Message-ID: Date: Sat, 10 Sep 2005 12:50:04 -0400 WTB: Nye viking RFM-003 Power Monitor Please leave price and phone number through email or call: 973-857-1195 NJ Article: 99858 of rec.radio.amateur.boatanchors Subject: Lafayette HE-50A Ten Meter Transciever manual needed From: Larry Date: Sat, 10 Sep 2005 16:06:05 -0500 Message-ID: <43234ABD.9010305@mtco.com> Hi all, I am looking for a manual for a Lafayette HE50A. Does anyone have one they would copy for me? Happy to pay copying costs and postage. Thanks Larry WA9VRH ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Article: 99859 of rec.radio.amateur.boatanchors Message-ID: <4324F88F.6E17CD29@sympatico.ca> From: "M. Kassay" Subject: FS: UNBUILT HEATHKIT !! Date: Sun, 11 Sep 2005 23:39:59 -0400 For Sale UNBUILT HEATHKIT HW-9 hf QRP rig - still in the box! - just the rig, no WARC kit or PS Best offer ( serious ones only ) shipping extra 73 Mike Article: 99860 of rec.radio.amateur.boatanchors From: Gregg Subject: Which tube tester? Date: Sun, 11 Sep 2005 22:55:47 -0700 Message-ID: <4325183b$1_1@dowco.com> Hi fellas, I find myself in the need for a tube tester and am watching three at the moment: - Heathkit TC-2 - Eico 625 - Accurate Instrument 157 The Accurate Instrument is powered straight from the line which unnerves me a bit :-\ Which of the three have you any experience as reasonably reliable??? Many thanks! -- Gregg "t3h g33k" http://geek.scorpiorising.ca *Ratings are for transistors, tubes have guidelines* Article: 99861 of rec.radio.amateur.boatanchors From: deadhog Subject: Re: FS: UNBUILT HEATHKIT !! Date: Mon, 12 Sep 2005 05:45:53 -0700 Message-ID: <43257881.F1D9B4DF@flash.net> References: <4324F88F.6E17CD29@sympatico.ca> Sell it on ebay, you will triple your money there instead this grp!!! dead hog. Article: 99862 of rec.radio.amateur.boatanchors From: "COLIN LAMB" References: <4325183b$1_1@dowco.com> Subject: Re: Which tube tester? Message-ID: <4gfVe.9262$Wd7.5932@newsread1.news.pas.earthlink.net> Date: Mon, 12 Sep 2005 13:20:00 GMT Many people believe that a tube tester needs to be a transconductance type to be accurate. I have numerous examples of both. My experiences through hundreds of tests are that the emission tester is accurate in almost all cases. As a matter of fact, I usually grab whichever tester is handy. If a tube is bad, either tester will usually tell you. Emission testers may actually be better in some situations - such as determining life left in the tube. I can recall only two tests in hundreds where the transconductance tester led me to a problem hidden by the emission tester. In one case, a Drake transceiver had a tube that had developed cathode interface and had about a 1 megohm internal leakage, which had developed because of a circuit designed by Drake, which had a very high impedance grid circuit that recommended by tube designers. Although I had substituted another tube, it also had cathode interface. The transconductance tester allowed me to do some detective work to find the problem. A third tube solved the problem. In the 30's, many people built their own tube tester. I have done that. I may get a lot of flack for my opinion, but I have my flack shield on and I can only report what I experience. Colin K7FM Article: 99863 of rec.radio.amateur.boatanchors From: "Antonio Vernucci" Subject: Advice on SX-101A Message-ID: Date: Mon, 12 Sep 2005 15:54:08 GMT I have recently got a very good single-owner Hallicrafters SX-101A, = mechanically and electrically intact. The radio is very sensititive on = all bands and appears to still be well calibrated, despite it has not = been used for more than 30 years. A problem I noticed, especially on 14 MHz, is the presence of several = strong AM broadcast (BC) signals across the band. Interesting to note = that the receiver preselector control yields no change at all in the BC = signal strength, whilst it yields a very clear peak in the 14-MHz = background noise. The first idea which came to my mind was poor image reception. With an = IF frequency of 1,650 kHz, the image should be plus/minus 3,300 kHz from = the actual 14-MHz receive frequency (i.e. in the 10.7 or 17.3 MHz = ranges) . But, on a separate receiver, I could hear no BC signals at all = on the expected frequencies. I then connected a signal generator to the SX-101A and I realized that = the receiver, when on 14-MHz, is very sensitive to a carrier in the 9.5 = MHz range. So, I reconnected the antenna to the SX-101, and, with the aid of a = separate receiver tuned around 9.5 MHz, I was immediately able to = identify the BC stations heard on the 14-MHz band with the SX-101A. I found the following frequency relationhips: - apparent BC carrier frequencies on SX-101A: 14139, 14189, 14309 kHz - corresponding BC real carrier frequencies: 9545, 9570, 9630 kHz The frequency difference between any two 14-MHz carriers is exactly = twice the real one (i.e. that in the 9.5 MHz range). I do not believe in intermodulation, because attenuating the input RF = signal (using an attenuator) cause an equal decrease of the BC signals = and the real 14-MHz signals (i.e. no improvement of the = wanted-signal-to-interference ratio). I believe more in something that has to do with second harmonics, but I = have not yet been able to derive the equation. Questions 1) any idea on the mechanism by which BC signals in the 9.5 MHz range = get through so strong? 2) did you have a similar experience with your SX-101A. Or, in other = words, is it a design problem or an adjustment problem? Thanks and 73 Tony, I0JX / K0JX Article: 99864 of rec.radio.amateur.boatanchors From: "Antonio Vernucci" References: Subject: Re: Advice on SX-101A Message-ID: Date: Mon, 12 Sep 2005 16:20:37 GMT I found a possible solution: - with the receiver tuned at 14,139 kHz, the local oscillator works at = 14,139+1,650=3D15,789 kHz - should the local oscillator also have a component at half its = frequency (i.e. 7,894.5 kHz), that component would convert an incoming = 9,545 kHz signal to the 1,650 kHz IF - this method also applies to the other two frequency cases=20 Any ideas on the reason and on the cure? 73 Tony I0JX / K0JX Article: 99865 of rec.radio.amateur.boatanchors From: "rfredericks" Subject: Re: FS: UNBUILT HEATHKIT !! Date: Mon, 12 Sep 2005 11:57:00 -0500 Message-ID: <11ibcqts339ig32@corp.supernews.com> References: <4324F88F.6E17CD29@sympatico.ca> <43257881.F1D9B4DF@flash.net> Agreed. Sell it on Ebay for 3 times what you think it's worth and you won't have to listen to people trying to persuade you that it's junk and make 5 cents on the dollar offers... or from people wanting you to ship COD. "deadhog" wrote in message news:43257881.F1D9B4DF@flash.net... > Sell it on ebay, you will triple your money there instead this grp!!! From adouglasatgis.net Tue Sep 13 15:45:36 EDT 2005 Article: 99866 of rec.radio.amateur.boatanchors From: Alan Douglas Newsgroups: rec.radio.amateur.boatanchors Subject: Re: Which tube tester? Date: Mon, 12 Sep 2005 16:18:30 -0400 Organization: http://newsguy.com Lines: 10 Message-ID: References: <4325183b$1_1@dowco.com> <4gfVe.9262$Wd7.5932@newsread1.news.pas.earthlink.net> NNTP-Posting-Host: p-789.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!arclight.uoregon.edu!wn11feed!worldnet.att.net!129.250.169.16!pln-e!spln!dex!extra.newsguy.com!newsp.newsguy.com!news1 Xref: news1.isis.unc.edu rec.radio.amateur.boatanchors:99866 Hi, >- Heathkit TC-2 >- Eico 625 >- Accurate Instrument 157 The first two have identical circuitry; pick whichever is in better shape or cheaper. Avoid the Accurate at any price. Alan Article: 99867 of rec.radio.amateur.boatanchors From: Gregg Subject: Re: Which tube tester? Date: Mon, 12 Sep 2005 13:58:50 -0700 References: <4325183b$1_1@dowco.com> <4gfVe.9262$Wd7.5932@newsread1.news.pas.earthlink.net> Message-ID: <4325ec03$1_1@dowco.com> Behold, Alan Douglas scribed on tube chassis: > Hi, > >>- Heathkit TC-2 >>- Eico 625 >>- Accurate Instrument 157 > > The first two have identical circuitry; pick whichever is in better > shape or cheaper. Avoid the Accurate at any price. > > Alan Thanks all! :-) -- Gregg "t3h g33k" http://geek.scorpiorising.ca *Ratings are for transistors, tubes have guidelines* Article: 99868 of rec.radio.amateur.boatanchors From: "Old Guy" References: <4324F88F.6E17CD29@sympatico.ca> <43257881.F1D9B4DF@flash.net> <11ibcqts339ig32@corp.supernews.com> Subject: Re: FS: UNBUILT HEATHKIT !! Message-ID: <1126564952.057de982a55d6d8c761ff6c7706c6422@meganetnews2> Date: Mon, 12 Sep 2005 15:42:27 -0700 Unless he just BOUGHT it on Ebay - interesting that an unbuilt HW-9 just sold last week for a surprisingly low number - $275 or so.... "rfredericks" wrote in message news:11ibcqts339ig32@corp.supernews.com... > Agreed. Sell it on Ebay for 3 times what you think it's worth and you > won't have to listen to people trying to persuade you that it's junk and > make 5 cents on the dollar offers... or from people wanting you to ship > COD. > > "deadhog" wrote in message > news:43257881.F1D9B4DF@flash.net... > >> Sell it on ebay, you will triple your money there instead this grp!!! > > Article: 99869 of rec.radio.amateur.boatanchors From: Randy or Sherry Guttery Subject: Re: Advice on SX-101A References: Message-ID: Date: Mon, 12 Sep 2005 20:58:44 -0500 Antonio Vernucci wrote: > I found a possible solution: > > - with the receiver tuned at 14,139 kHz, the local oscillator works at 14,139+1,650=15,789 kHz > - should the local oscillator also have a component at half its frequency (i.e. 7,894.5 kHz), that component would convert an incoming 9,545 kHz signal to the 1,650 kHz IF > - this method also applies to the other two frequency cases > > Any ideas on the reason and on the cure? > > 73 > > Tony I0JX / K0JX I'd use an O'scope to look at the local osc. - see if the waveform is "funky"... If it's not a nice sine-wave - that could be the source of your "sub-harmonic"... which might cause the image you're picking up. Be careful when probing with a scope - you'll want to use some sort of weak / high impedance coupling - certainly not a direct connection with a 1:1 probe, etc. If the local is producing some odd waveform - check the power supplies / decoupling / tuning of the osc. Someone may have cranked a slug or trimmer cap into some weird tuning that "sorta" works... but not where it should be. 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: 99870 of rec.radio.amateur.boatanchors From: "jm" References: <1126536407.733494.32680@o13g2000cwo.googlegroups.com> Subject: Re: Utah Radio Products Co. equipment info Message-ID: Date: Mon, 12 Sep 2005 22:46:26 -0400 wrote in message news:1126536407.733494.32680@o13g2000cwo.googlegroups.com... >I have 3 pieces of ham gear that I can't find any info on. Utah UA5, > UAT4 and UAT1. Can anybody point me in the right direction as to info > on these units. Pre WW11 is all I know. Most have Taylor tubes in > them. > > Thanks in advance, Todd > Speaking of which, I have a Utah Radio Products Speaker - NOS - albeit the box is rather worn from age - for sale. $5 plus shipping It is like a 4x 8, unsure of impedance at moment. Looks ok in condition Article: 99871 of rec.radio.amateur.boatanchors From: "COLIN LAMB" References: <4325183b$1_1@dowco.com> <4gfVe.9262$Wd7.5932@newsread1.news.pas.earthlink.net> Subject: Re: Which tube tester? Message-ID: Date: Tue, 13 Sep 2005 04:55:35 GMT Some tube manufacturers specified a maximum grid leak resistance. It was often about 2 million ohms. Drake found that much higher resistance was great for avc performance. However, over the long run, it was also asking for trouble. In theory, what Chuck says is true - that transconductance testers are better than emission testers. However, I can just report that in hundreds of tests I have just found a couple of cases where there was any practical difference. I often end up getting sucked into helping others get their receiver going again. I do not charge for it and I want to get back to my own projects. The emission tester is much faster to use and I do not really care if the tube is 79% good or whether it has 10% less gain. The radio does not work when I start and I am looking for black or white, not shades of gray. Often, it is not the tubes, but rather another component. The tube tester simply eliminates the tube as the culprit for total failure. I suppose if I were looking for a tube with the best performance for a 2 meter moon bounce preamp, I would use a transconductance tester. However, in that case, I would not use a tube at all. I could not imagine running all the tubes of an S-85 through the test procedure for a transconductance tester - unless I had to. Colin K7FM Article: 99872 of rec.radio.amateur.boatanchors From: "COLIN LAMB" References: <4325183b$1_1@dowco.com> <4gfVe.9262$Wd7.5932@newsread1.news.pas.earthlink.net> Subject: Re: Which tube tester? Message-ID: Date: Tue, 13 Sep 2005 13:13:50 GMT Many transconductance testers have multiple switch decks to move each element around. This represents a number of additional steps, over the emission tester. And, I often can get the radio back up and running in 20 minutes - and speed is important since I do not charge for it. Chuck no doubt is more thorough than I am - but I am only servicing an old radio and not a 50 Mhz precision scope. 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. Colin K7FM