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1. [Amps] SB-220 amp help (score: 1): Author: Gudguyham@aol.com; Date: Wed, 6 Apr 2011 08:14:55 -0400 (EDT); GM guys, since we are beating the hell out of the Heathkit amplifier these past few days, I want to offer some help to you who are new to the amp. Here is an occasional problem that comes up that can; /archives//html/Amps/2011-04/msg00218.html (7,561 bytes)
2. Re: [Amps] SB-220 amp help (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Wed, 06 Apr 2011 08:43:38 -0400; My SB-220 has been an absolute joy since I bought it a decade ago, at which point it was already about 25 years old, but this message raised a question. In CW contest service, I have always used the; /archives//html/Amps/2011-04/msg00223.html (9,243 bytes)
3. Re: [Amps] SB-220 amp help (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Wed, 6 Apr 2011 09:42:11 -0400; The HV metering resistors may have opened up. For the power its common for D-17 and C-54 to develop leakage and the pot to open. Id also check R-24 and 25 as carbon resistors tend to increase in valu; /archives//html/Amps/2011-04/msg00228.html (10,493 bytes)

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