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: John Kos Sorry for the second post... -- 11/12/1997 7:21 PM View Thread

Re: Bias of Crate VC3112

11/13/1997 5:18 AM
Dave Harris
Re: Bias of Crate VC3112
The AC30 runs with about 10V across the 50R common cathode resistor. That is a total of 200mA, 100mA per side or 50mA per tube. That is a lot of current and heat (about 65W). What was the original Crate bias ? The Crate transformers may not be able to provide the AC30 current.

John Kos The amp is designed for four EL-84'... -- 11/17/1997 11:32 PM