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: Mook It's a Homebrew (2xEL84) using a Ha... -- 8/19/1999 12:52 PM view thread

Re: Bias Supply Frying Resistors Like Bacon!

8/19/1999 2:57 PM
Steve K
Re: Bias Supply Frying Resistors Like Bacon!
Seems like 470 is way too low for this. Looks  
 
like at 300v you'd be dropping about 1/2 an amp  
 
through this. I am successful using a 150k to  
 
220k. Try the bias circuit type I got off the  
 
Kevin O'Connor web site (I believe) which has  
 
the correct values for what you are trying to do.  
 
If you can't find it, let me know and I'll send  
 
it to you...  
 
You need a high value resistor to tap some E  
 
for a bias circuit from the AC output.  
 
Steve K