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

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  
previous: Gil Ayan q{Gil,Sounds like y... -- 7/12/2000 8:50 PM View Thread

Re: Trip + Presence + Why Dumble's Way?

7/12/2000 9:55 PM
Ray Ivers
Re: Trip + Presence + Why Dumble's Way?
Gil,  
 
Yes, you're absolutely right; this is what I get from not having the print in front of me while I type. Forgot completely about the 390 ohm resistor, which changes everything, of course.  
 
About the stability thing; I just meant that I think I would rather have an 820 ohm/100 ohm feedback node (some blackface Fenders) than a 100K/5K (Marshall) one, just in case lead dress or stray capacitance causes some earlier amp stage to pick up the signal from this node (where it may constitute positive feedback to that stage). It wouldn't actually be the output stage that was oscillating - sorry about that.  
 
Ray