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Total 11 documents matching your query.

1. [Amps] Failed 8877 (score: 1): Author: w9ac@arrl.net (Paul Christensen); Date: Sun, 6 Oct 2002 14:47:00 -0400; After 20 years of service, I experienced my first problem with my Alpha 77Dx amplifier. I noted that the input VSWR into the amp was very high, zero plate current, and only 40mA of grid current regar; /archives//html/Amps/2002-10/msg00046.html (7,962 bytes)
2. Fw: [Amps] Failed 8877 (score: 1): Author: on4kj@skynet.be (on4kj); Date: Sun, 6 Oct 2002 20:11:50 -0000; then open moment.; /archives//html/Amps/2002-10/msg00047.html (9,426 bytes)
3. [Amps] Failed 8877 (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Sun, 06 Oct 2002 14:29:48 -0700; I don't know about 8877's, but I've had wires in the pins of glass tubes come unsoldered due to heat caused by loose socket contacts. Is this possible here? Vic K2VCO; /archives//html/Amps/2002-10/msg00049.html (7,387 bytes)
4. [Amps] Failed 8877 (score: 1): Author: namidzich@wi.rr.com (noll amidzich); Date: Sun, 6 Oct 2002 19:01:27 -0500; Paul, Try K9AU, Frank Stelloh for 8877 pulls. I have purchased from him. He is honest and reliable. GL 77Dx current, DVM, with filament 25% looking?; /archives//html/Amps/2002-10/msg00051.html (8,845 bytes)
5. [Amps] Failed 8877 (score: 1): Author: jimsmith@foothill.net (Jim Smith); Date: Sun, 6 Oct 2002 20:30:18 -0700; I've got a few laying around somewhere. I've even got a new one in its original sealed box. I'll see what I can locate. I just need to figure out what they are going for now. Lots of amplifier stuff; /archives//html/Amps/2002-10/msg00052.html (8,965 bytes)
6. [Amps] Failed 8877 (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Mon, 7 Oct 2002 07:57:59 +0100; DVM, with filament 25% I have a pair of 8877s that do just the same - they come from the 'quality problem' period and came from industrial generator pulls, but I know nothing else of their history. I; /archives//html/Amps/2002-10/msg00054.html (8,500 bytes)
7. [Amps] Failed 8877 (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Mon, 7 Oct 2002 13:04:01 +0000; Sorry, but I don't know and my contact is long gone, so I've no route to find out. Steve; /archives//html/Amps/2002-10/msg00055.html (6,800 bytes)
8. [Amps] Failed 8877 (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Mon, 7 Oct 2002 20:21:20 +0100; then open moment. nothing heater 24hr been Something I should add here, just remembered. I tested both tubes in a 6m PA built by a friend - one tube ran up just like his, stacks of output without any; /archives//html/Amps/2002-10/msg00056.html (9,065 bytes)
9. [Amps] Failed 8877 (score: 1): Author: mike.tubby@thorcom.co.uk (Michael J. Tubby B.Sc. (Hons) G8TIC); Date: Tue, 8 Oct 2002 10:31:37 +0100; filament other 'quality correct PA without Steve, Aren't these the tubes that when you invert them you hear a 'plink' type noise from inside as they disconnect? Mike; /archives//html/Amps/2002-10/msg00066.html (9,552 bytes)
10. [Amps] Failed 8877 (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Tue, 8 Oct 2002 12:35:47 +0000; I just dug them out - I can't hear the tinkling noises that I remember from before and one of them is going open when inverted. I never tried to correlate the noise to heater continuity - at the time; /archives//html/Amps/2002-10/msg00070.html (7,173 bytes)
11. [Amps] Failed 8877 (score: 1): Author: 2@vc.net (Rich); Date: Tue, 8 Oct 2002 20:20:32 -0700; New ones sometimes make noise when shaken.; /archives//html/Amps/2002-10/msg00072.html (7,129 bytes)

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