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Re: [Amps] 813's

To: Vic K2VCO <vic@rakefet.com>, amps@contesting.com
Subject: Re: [Amps] 813's
From: Chris Pedder <chris@g3vbl.co.uk>
Date: Sat, 27 May 2006 20:32:15 +0000
List-post: <mailto:amps@contesting.com>
At 19:45 27/05/2006, K2VCO wrote:

>There was an article in ARRL handbooks of the late '50s or early '60s
>describing a series of single-band amplifiers each using a pair of
>813's.  Construction was simple, with a pair of chassis behind a short
>rack panel and the 813's mounted horizontally.  The author left the
>plate voltage connected and just lit the filaments (and I presume
>switched drive and antenna) of the one he wanted to use.  I built a
>similar amplifier, although mine was for 80-40-20 meters.
>--
>73,
>Vic, K2VCO

The ARRL publication "Single Sideband for the Radio Amateur" Fifth 
Edition 1970 also has these amps on pp138-141.

Chris G3VBL




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