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Total 4 documents matching your query.

1. [Amps] Alpha 77SX forward & reverse W not working (score: 1): Author: "Gary Smith" <Gary@ka1j.com>; Date: Thu, 28 Mar 2019 22:34:15 -0400; Another hiccup in getting this old girl back into shape. I rarely use the watt meter in the amp, I use the one in the P3 and on top of the amp is a LP-100A, those always handle my needs. As a general; /archives//html/Amps/2019-03/msg00056.html (7,850 bytes)
2. Re: [Amps] Alpha 77SX forward & reverse W not working (score: 1): Author: MU 4CX250B <4cx250b@miamioh.edu>; Date: Sat, 30 Mar 2019 10:40:21 -0400; As I recall (and maybe I dont!),the 77SX has the same tank circuit as the 77DX, which means the plate load Z is too low for the tank components. The amp tunes to resonance, except on 10m, but not cer; /archives//html/Amps/2019-03/msg00059.html (9,210 bytes)
3. Re: [Amps] Alpha 77SX forward & reverse W not working (score: 1): Author: Martin Sole <hs0zed@gmail.com>; Date: Sat, 30 Mar 2019 22:45:03 +0700; I had the same problem with my early 77D, so early the fwd ad rfl meter is open wired on tag strips, no pcb. I just replaced the diodes, seems they have a finite life. Likely you have a similar probl; /archives//html/Amps/2019-03/msg00060.html (8,885 bytes)
4. Re: [Amps] Alpha 77SX forward & reverse W not working (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Sun, 31 Mar 2019 12:01:48 -0400; Yes the tank is the same and with the stock transformer there is not that much of a difference in output so the operation is adequate. There is nothing magic about the ARRL Q=12 and a wide variation; /archives//html/Amps/2019-04/msg00002.html (9,708 bytes)

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