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1. [Amps] SB221 Low Output (score: 1): Author: Alex Barbon <dv1tbx@gmail.com>; Date: Mon, 12 Sep 2011 09:57:00 +0800; Hi to all, Iam working with an SB221 amp, cantget the power output to go higher than 400watts either AM or SSB voice peak. The tube is confirm good from a working amp. Here is my reading *20m, AM mod; /archives//html/Amps/2011-09/msg00034.html (6,689 bytes)
2. Re: [Amps] SB221 Low Output (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Mon, 12 Sep 2011 10:24:10 -0400; I don't know anything about SSB, (what ever that is) but with 25 - 30 Watts of drive you should get about 350 Watts (carrier only) out of it, it looks (to me) like you are over driving it a lot. That; /archives//html/Amps/2011-09/msg00036.html (7,381 bytes)

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