ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum. New: view Recent Searches.
New: visit Schematic Hell!
The sunn still shines online!

 
Listen to great tunes streaming live right now!

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  
previous: Brian Well, one way would be to not use a... -- 8/17/2000 10:01 PM View Thread

Re: Ideas on biasing

8/18/2000 3:28 PM
andyfuchs
email
Re: Ideas on biasing
There was an article a few years back in Audio Amateur that featured an op-amp and a small valuie resistor in the output tube cathode. It formed a bias servo that worked well in the audiophile amps I used it in. I just don't think bias is that critical anymore. Once set (and with separate pots per tube), and if checked periodically, it shouldn't go too far unless your tubes fail or are of poor quality.

 
Replies:
GFR There was a special issue on -- 8/18/2000 3:42 PM