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1. [Amps] Alpha 77 (8877) exhaust temp? (score: 1): Author: Jim Barber <audioguy@charter.net>; Date: Sun, 05 Jul 2009 15:28:27 -0700; All this talk about seals, temperatures and sensors has me wondering what would be a reasonable, conservative guessestimate of the maximum safe exhaust temperature on an Alpha 77? (single 8877, groun; /archives//html/Amps/2009-07/msg00120.html (7,027 bytes)
2. Re: [Amps] Alpha 77 (8877) exhaust temp? (score: 1): Author: "Bill, W6WRT" <dezrat1242@yahoo.com>; Date: Mon, 06 Jul 2009 09:56:11 -0700; ORIGINAL MESSAGE: REPLY: I don't have data on the 77, but two other Alphas I have owned, a 91b and an 89, both had exhaust temps that stabilized around 190 F after prolonged brick on the key TX. I su; /archives//html/Amps/2009-07/msg00126.html (8,573 bytes)
3. Re: [Amps] Alpha 77 (8877) exhaust temp? (score: 1): Author: Jim Barber <audioguy@charter.net>; Date: Mon, 06 Jul 2009 13:22:47 -0700; Thanks, Bill. That idea also gets around the issue of using a potentially RF-noisy DC motor, as pointed out by K7RDX. Short of the complications and overkill of a single-phase VFD, a couple of speeds; /archives//html/Amps/2009-07/msg00128.html (9,896 bytes)

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