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[AMPS] Distortion, amp design, and 813s (newbie alert!!)

To: <>
Subject: [AMPS] Distortion, amp design, and 813s (newbie alert!!)
From: (Randall DuCharme)
Date: Wed, 19 Sep 2001 16:43:31 -0700 (PDT)

--- 2 <> wrote:

> >How 'bad' would they be?  Even in a
> >push-pull circuit?  With NFB ???
> >
> //  Push-pull is a 5-gallon bucket of worms.

How so.... aside from the extra complexity of
bandswitching, load matching, balancing, etc??

> >I intend to build a grid-driven setup with bias and
> >screen supplies 
> //  If you go with grid driven, better wear
> disguises to ham conventions 
> and swap meets.  Name/Call badges are not a good
> idea either.  
> Grid-driven 813s are reliable splatter generators.  

Interesting.  Is this a characteristic of the tube or
one of poor design or of poor loading/driving

Would you think cathode driven operation with, or
without screen/bias supplies would be best?  (Not
necessarily what would be easier)  I ask because it
seems to some, G-G means grids strapped to ground and
to others, it just means RF grounded.

Thanks for your thoughts.


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