Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Unknown\s+tube\s+amp\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Unknown\s+tube\s+amp\s*$/: 22 ]

Total 22 documents matching your query.

1. [Amps] Unknown tube amp (score: 1): Author: Chris Howard <chris@yipyap.com>; Date: Sun, 12 Dec 2004 08:23:15 -0700; Hi, I recently inherited what is supposed to be a 1kw homebrew AM transmitter. It was built by W6MSC, a former ham and retired engineer for VOA. But, the PA doesn't have any tubes in it, so I was thi; /archives//html/Amps/2004-12/msg00179.html (7,531 bytes)
2. Re: [Amps] Unknown tube amp (score: 1): Author: Vic Rosenthal <vic@rakefet.com>; Date: Sun, 12 Dec 2004 07:52:39 -0800; Chris Howard wrote: The PA has two tube sockets. They are a two-pin push-in-and-twist mount. Each also has two plate-cap type connectors, one at the top and one maybe on the side? The physical space; /archives//html/Amps/2004-12/msg00180.html (6,781 bytes)
3. Re: [Amps] Unknown tube amp (score: 1): Author: jeff millar <wa1hco@adelphia.net>; Date: Sun, 12 Dec 2004 11:35:35 -0500; 833s don't twist and both plate and grid lie on top. I'd say 810's but they have 4 pins on the base Maybe browse through and old handbook looking for a base diagram that looks right and then scan the; /archives//html/Amps/2004-12/msg00181.html (7,848 bytes)
4. Re: [Amps] Unknown tube amp (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Sun, 12 Dec 2004 11:41:01 -0500; 304TLs? 73, Pete N4ZR At 10:52 AM 12/12/2004, Vic Rosenthal wrote: Chris Howard wrote: The PA has two tube sockets. They are a two-pin push-in-and-twist mount. Each also has two plate-cap type connec; /archives//html/Amps/2004-12/msg00182.html (7,675 bytes)
5. Re: [Amps] Unknown tube amp (score: 1): Author: Vic Rosenthal <vic@rakefet.com>; Date: Sun, 12 Dec 2004 09:00:20 -0800; jeff millar wrote: 833s don't twist and both plate and grid lie on top. The 833A has two big filament pins at the bottom, which can be held by a twist-in arrangement, sort of like the way the pins on; /archives//html/Amps/2004-12/msg00183.html (8,020 bytes)
6. Re: [Amps] Unknown tube amp (score: 1): Author: John Lawson <jpl15@panix.com>; Date: Sun, 12 Dec 2004 12:01:19 -0500 (EST); On Sun, 12 Dec 2004, Chris Howard wrote: The PA has two tube sockets. They are a two-pin push-in-and-twist mount. Each also has two plate-cap type connectors, one at the top and one maybe on the side; /archives//html/Amps/2004-12/msg00184.html (8,156 bytes)
7. Re: [Amps] Unknown tube amp (score: 1): Author: "Dr. William J. Schmidt, II" <bill@wjschmidt.com>; Date: Sun, 12 Dec 2004 12:35:03 -0600; A picture would go a long way here.... Sincerely, Dr. William J. Schmidt, II K9HZ Trustee of the North American QRO - Central Division Club - K9ZC "Collector of Edison Wind-up Phonographs... Do you h; /archives//html/Amps/2004-12/msg00185.html (9,510 bytes)
8. Re: [Amps] Unknown tube amp (score: 1): Author: Chris Howard <chris@yipyap.com>; Date: Sun, 12 Dec 2004 12:16:07 -0700; Thanks for the ideas so far! I will be attempting to get some pictures today, and I will post that info. Also, I'm going to write a letter to W6MSC and see what he remembers. Thanks! Chris kc0atc ___; /archives//html/Amps/2004-12/msg00186.html (7,551 bytes)
9. Re: [Amps] Unknown tube amp (score: 1): Author: Chris Howard <chris@yipyap.com>; Date: Sun, 12 Dec 2004 12:48:22 -0700; Here are the pictures! www.yipyap.com/radio_stuff/PA-1.jpg is the front www.yipyap.com/radio_stuff/PA-2.jpg is the side www.yipyap.com/radio_stuff/PA-3.jpg is the back www.yipyap.com/radio_stuff/PA-4; /archives//html/Amps/2004-12/msg00187.html (7,831 bytes)
10. Re: [Amps] Unknown tube amp (score: 1): Author: Vic Rosenthal <vic@rakefet.com>; Date: Sun, 12 Dec 2004 12:02:17 -0800; Chris Howard wrote: Here are the pictures! OK, it's not an 833A because the grid cap of the 833A is the same size as the plate cap and on top. Someone said 304TL, but that has a 4-pin base. -- 73, Vi; /archives//html/Amps/2004-12/msg00188.html (8,715 bytes)
11. Re: [Amps] Unknown tube amp (score: 1): Author: Vic Rosenthal <vic@rakefet.com>; Date: Sun, 12 Dec 2004 12:04:21 -0800; Vic Rosenthal wrote: Someone said 304TL, but that has a 4-pin base. On the other hand, maybe it's a 304TL with the two unused socket pins removed! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco; /archives//html/Amps/2004-12/msg00189.html (8,760 bytes)
12. Re: [Amps] Unknown tube amp (score: 1): Author: John Lawson <jpl15@panix.com>; Date: Sun, 12 Dec 2004 15:04:15 -0500 (EST); Hmmm - a 250TH would fit that - only two of the four pins are connected, and the grid and plate caps match the 250's - big plate and 'pin' grid connection. And two of them will do a kilowatt with 3KV; /archives//html/Amps/2004-12/msg00190.html (8,762 bytes)
13. Re: [Amps] Unknown tube amp (score: 1): Author: "Dr. William J. Schmidt, II" <bill@wjschmidt.com>; Date: Sun, 12 Dec 2004 14:22:18 -0600; Yeah now that I look at the pictures, it's either a 250TH or a 450TH... those are the only tubes that will fit. The 304TL doesn't work because it has a dual filament (4 pin connections). Sincerely, D; /archives//html/Amps/2004-12/msg00191.html (10,288 bytes)
14. Re: [Amps] Unknown tube amp (score: 1): Author: "Harold B. Mandel" <ka1xo@juno.com>; Date: Sun, 12 Dec 2004 15:02:56 -0500; Dear Chris, Please examine the tube sockets very carefully and record all numbers and letters you find on them, perhaps take a digital picture of the socket(s) and report back to the reflector on you; /archives//html/Amps/2004-12/msg00192.html (8,565 bytes)
15. [Amps] Unknown tube amp (score: 1): Author: "Harold B. Mandel" <ka1xo@juno.com>; Date: Sun, 12 Dec 2004 15:33:18 -0500; Gents, My vote is also for a 250-TH. The collar pin recess says a lot. Question is, will the big bulb of the 250 fit in the tank area? Hal Mandel W4HBM _______________________________________________; /archives//html/Amps/2004-12/msg00193.html (7,559 bytes)
16. Re: [Amps] Unknown tube amp (score: 1): Author: John Lawson <jpl15@panix.com>; Date: Sun, 12 Dec 2004 15:53:30 -0500 (EST); On Sun, 12 Dec 2004, Dr. William J. Schmidt, II wrote: Yeah now that I look at the pictures, it's either a 250TH or a 450TH... those are the only tubes that will fit. I would tend to think more the 2; /archives//html/Amps/2004-12/msg00194.html (8,741 bytes)
17. Re: [Amps] Unknown tube amp (score: 1): Author: Vic Rosenthal <vic@rakefet.com>; Date: Sun, 12 Dec 2004 13:00:10 -0800; Dr. William J. Schmidt, II wrote: Yeah now that I look at the pictures, it's either a 250TH or a 450TH... those are the only tubes that will fit. The 304TL doesn't work because it has a dual filament; /archives//html/Amps/2004-12/msg00195.html (8,922 bytes)
18. Re: [Amps] Unknown tube amp (score: 1): Author: "Mike Sawyer" <w3slk@uplink.net>; Date: Sun, 12 Dec 2004 16:12:08 -0500; I'm just kind of curious whether it may be a socket for a 3A200. These were pretty much used in the old FAA A-and-N transmitters. The unusual thing was they had a 3-pin base and 2 grid connections on; /archives//html/Amps/2004-12/msg00196.html (9,878 bytes)
19. Re: [Amps] Unknown tube amp (score: 1): Author: Verner Topsøe-Jensen OZ5TG <oz5tg@post2.tele.dk>; Date: Sun, 12 Dec 2004 22:21:26 +0100; Chris, Do You know the heater voltage ? OZ5TG, Vern _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2004-12/msg00197.html (10,696 bytes)
20. Re: [Amps] Unknown tube amp (score: 1): Author: jeff millar <wa1hco@adelphia.net>; Date: Sun, 12 Dec 2004 17:12:57 -0500; Excellent pics...here the 250TH spec. Looks right http://www.dscc.dla.mil/Downloads/MilSpec/Docs/MIL-PRF-1/prf1ss878.pdf Chris Howard wrote: Here are the pictures! www.yipyap.com/radio_stuff/PA-1.jpg; /archives//html/Amps/2004-12/msg00198.html (9,748 bytes)

Current List: 1 - 20
Page: [1] [2]