ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum.

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  

 

previous: Brutus You can easily hear how class A sou... -- 10/3/2004 5:00 PM view thread

Re: What tube amp to build next?

10/3/2004 8:16 PM
Carl Gigun
Re: What tube amp to build next?
Brutus,  
 
You sound like a knowledgeable guy so please don't take this personally, but isn't it generally true that an amp designed for AB can't be turned into class A by changing the bias as you suggest because the plate voltage is too high? A class A amp has to idle at a current halfway between cutoff and saturation. Biasing to that point in your average AB guitar amp would be well over the rated Pa for the tubes right?  
 
-Carl

 
Replies:
Brutus Yes in general I'd say that you are... -- 10/5/2004 2:01 AM