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: Steve Ahola Dave:  &n... -- 5/23/2000 6:03 AM View Thread

Re: Dumble Clone Parts: Trannies etc...

5/23/2000 2:32 PM
Dave B.
Re: Dumble Clone Parts: Trannies etc...
The dumb-pedal is basically the 97 schem. with the 70's style O.D. section. Here's the minor differences.  
1) No 47 pf cap across the clean master. O.D. preamp has 180k - 250k gain pot - 180k, in between V2A & V2B. Cathode cap values the same a the 97.Across the first O.D. stage plate resistor - 500pf, 2nd stage A .003 & 500pf (.0035 total).  
I've got a scanner now so i can send you a drawing if you like.