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SV: SV: [AMPS] Tetrode Amp Help

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Subject: SV: SV: [AMPS] Tetrode Amp Help
From: gdaught6@leland.Stanford.EDU (George T. Daughters)
Date: Fri, 10 Dec 1999 08:43:06 +0008

Hi all,

> >Thanks for info. Of course you need always  a high frequency screen grid cap
> >or grounded g2. But you did not get my point: if your g2 voltage is slowly
> >following your SSB-signal you do not get envelope distorsion but a slow gain
> >variation. 
> 
> I do not agree.  When the screen / G2 voltage is not held constant, 
> distortion results.  

I'm with Rich on this.  "A slow gain variation" is a nonlinearity!  
Whether it is small enough to be unimportant, i.e. legally acceptable 
is another question, but why not use a stiff regulator and avoid this 
source of distortion?

73,
George T. Daughters, K6GT

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