[AMRadio] High level modulation of tetrodes

W7QHO at aol.com W7QHO at aol.com
Tue Sep 27 21:23:57 EDT 2005

In a message dated 9/27/05 6:11:03 PM, wa5bxo2005 at pctechref.com writes:

> One fix would be to have a separate winding on the modulation XFMR
> and a fixed screen supply.  This scenario means hard to find parts and
> complex circuits. 

The military ART-13 does this (813 modulated by a pair of 811s).   Special 
transformer for sure, but   the circuitry is otherwise simple and 
straightforward.   Works great.

Dennis D. W7QHO
Glendale, CA

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