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1. [AMPS] Alpha Bandswitch (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Tue, 25 Feb 1997 10:01:30 -0500 (EST); Two things: where can I find a (cheap?) replacement banswitch - directly from Alpha or is there any other source? And also, why does this keep happening? I don't know about the source, you might look; /archives//html/Amps/1997-02/msg00060.html (8,182 bytes)
2. [AMPS] 3CX1200A7 vs 3CX1200D7? (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Tue, 25 Feb 1997 10:01:33 -0500 (EST); << What is the difference between the 3CX1200A7 and the 3CX1200D7? Does one have a real advantage over the other? Are they interchangable? Thanks. >> They are almost identical except for filament vol; /archives//html/Amps/1997-02/msg00061.html (7,172 bytes)
3. [AMPS] 3-500Zs (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Wed, 26 Feb 1997 22:50:06 -0500 (EST); << Recently, I have been told that Eimac will no longer produce the 3-500Z and their machinery and tooling have been sold to a company in the east who will continue the manufacture of them. I have no; /archives//html/Amps/1997-02/msg00076.html (6,986 bytes)
4. [AMPS] Re: 3CX800 failures (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Wed, 26 Feb 1997 23:41:59 -0500 (EST); When I was prototyping some 3CX800 amplifiers, I ran them without grid trip circuits. I found I could waste a tube in a matter of a second or less if the load was shorted and full drive applied. Even; /archives//html/Amps/1997-02/msg00077.html (7,970 bytes)
5. [AMPS] New 3-500Z (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Wed, 26 Feb 1997 23:42:29 -0500 (EST); << Several years ago, a CQ magazine writer extolled the virtue of the Sylvania or Amprex 3-500Z. he said it had heavier graphite on the plate and a different pate design which allows for more power d; /archives//html/Amps/1997-02/msg00078.html (8,050 bytes)
6. [AMPS] >3-500Z Biz (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Thu, 27 Feb 1997 18:47:12 -0500 (EST); << I would wonder if the interelectrode capacitance was the same with the tube that "sounded better!" Was its lead inductance the same and did it drive the same as the reflected load to the exciter w; /archives//html/Amps/1997-02/msg00082.html (7,913 bytes)
7. [AMPS] New 3-500Z (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Thu, 27 Feb 1997 19:51:29 -0500 (EST); n a message dated 97-02-27 08:32:04 EST, you write: << I have not seen any published IMD data on the graphite anode versions and will leave that up to someone else.>> Tests here indictated equal perf; /archives//html/Amps/1997-02/msg00086.html (9,456 bytes)

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