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1. Re: [Amps] Amps Digest, Vol 212, Issue 1 (score: 1): Author: <dbritchie@gmail.com>; Date: Sat, 1 Aug 2020 09:40:15 -0700; Hi Mike! Yes - in my experience that is about what you can expect from a used SB220/221. New tubes might help a bit on 10M. The power supply is pretty marginal. There are things you can do to help it; /archives//html/Amps/2020-08/msg00003.html (6,695 bytes)
2. Re: [Amps] Amps Digest, Vol 212, Issue 1 (score: 1): Author: RCM <robrk@nidhog.net>; Date: Sat, 1 Aug 2020 14:35:28 -0400; Those amps, its power supply and tank circuit were designed when the rule was 1 KW input, and get 600 out. With the 2400 or so volts on the plate and not the 3500 of a Henry or Ameritron, all you ar; /archives//html/Amps/2020-08/msg00006.html (7,243 bytes)

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