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Re: [Amps] Dual 8877 HF amplifier RF design

Subject: Re: [Amps] Dual 8877 HF amplifier RF design
From: peter chadwick <>
Date: Sun, 15 Dec 2013 22:11:21 +0100
List-post: <">>
Of course, you wouldn't actually use it on the air for just the 400 watts PEP 
output for which almost all G stations are licenced at HF...

 Message Received: Dec 15 2013, 05:48 PM
 Subject: [Amps] Dual 8877 HF amplifier RF design
 I've been looking for designs, and examples for implementing, dual 2 x
 8877s on HF.  I'm looking to build something that will cover 160m - 10m.
 WD7S kindly sent through details of his auto-tune amplifier, and I'm
 planning to use one of his tuner boards for the input of my amplifier.  I
 don't want (or need) auto-tuning for the output though.  I'm going to use
 a G3SEK board for control and metering.
 If anyone has anything they could pass on, it would be very much
 appreciated.  I've some experience of building valve amps, but only on
 VHF, and only published designs. I'm not confident as a designer.
 Denis MW0CBC / GW8OQV
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