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Re: [Amps] GG in Class C?

To: n5six@bellsouth.net, amps@contesting.com
Subject: Re: [Amps] GG in Class C?
From: TexasRF@aol.com
Date: Thu, 16 Feb 2006 20:09:30 EST
List-post: <mailto:amps@contesting.com>
 
Bruce, You can add more cathode bias to accomplish this. Just keep in mind  
that as you increase the bias voltage more rf drive will be needed to reach a  
given plate current and power output level.
 
Some of the Ameritron amplifiers have a front panel switch marked SSB/CW  
that does exactly what you are asking about.
 
73,
Gerald K5GW
 
In a message dated 2/16/2006 6:23:10 P.M. Central Standard Time,  
n5six@bellsouth.net writes:

Is it  possible and/or feasible to put a grounded grid linear into Class 
C?   Reason I ask is my old Tempo/Henry 6n2 is used almost exclusively 
for WSJT  modes and they all do fine on Class C since they send single, 
sequential  tones.  Amp is configured as push-pull on 2m and parallel on  
6m.  Current biasing arrangement is single 10v, 50w zener in cathode  
circuit.  I would think the efficiency would be much better in class  C 
if that is possible and would seem to help the 3CX400A7/8874's  along.  
Searches and old handbooks haven't been much help.   Plenty of info out 
there on tetrodes and biasing but not gg  triodes.

Thanks - Bruce,  N5SIX

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