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1. [AMPS] Alpha 78 help needed (score: 1)
Author: ik2ani@infinito.it (Aldo Angeletti)
Date: Thu, 7 Feb 2002 14:19:26 +0100
HI, some week ago I bought a second-hand Alpha 78 linear amplifier. I read in the manual the best ratio of dc plate voltage to dc plate current is 1972. The manual suggest to tune the amplifier for a
/archives//html/Amps/2002-02/msg00063.html (7,265 bytes)

2. [AMPS] 2 x 813 linear amplifier on 160 m.: HELP! (score: 1)
Author: ik2ani@infinito.it (Aldo Angeletti)
Date: Sun, 11 Feb 2001 17:08:57 +0100
pair of 813 tubes. It works fine from 10 to 80 running about 500 to 700 watts output. Now I decide to make an attempt for the 160 m. So, following two similar articles (QST january 1989 pag. 23 and
/archives//html/Amps/2001-02/msg00230.html (7,417 bytes)

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