[Amps] 813 HB

m.ford k1ern at direcway.com
Sun Mar 5 22:51:51 EST 2006


----- Original Message ----- 
From: "David C.Hallam" <dhallam at rapidsys.com>
To: <Amps at contesting.com>
Sent: Sunday, March 05, 2006 6:00 PM
Subject: Re: [Amps] 813 HB


> 
> There also is an interesting article in the November 1961 QST about building
> a rack of single band GG amplifiers using 2 - 813s, easy band change.
> 
> David
> KC2JD
> 
> 

There is also a nice treatment of single band 813s in the 1964 handbook.
The individual band was selected by lighting the filiments while screen
and anode voltages were everpresent.

The shadow box meter panel does it for me though.

Mike k1ern




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