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: Trace I've had some fellas emailing me ab... -- 8/30/1999 5:28 AM view thread

Re: Some quick Marshall Mods...

8/30/1999 10:26 PM
Jim S.
Re: Some quick Marshall Mods...
For mod #3, you don't mean to solder that 250P cap *in parallel* with the .022uF, do you? If so, the net capacitance would be .022250uF (assuming 100% exact cap values), which makes no audible difference from .022. Of course, wiring the two caps in series would only serve to drastically thin out the tone. Do you mean to connect one end of the 250p cap to ground to reduce high frequencies? But it seems like that might only serve to muddy things up.  
 
 
 
Please explain this mod in more detail. Thanks!  
 
 
 
Also, for mod #4, it sounds like you're referring to the bias feed resistors, right? I've never heard of going lower than 100K for these. Would 82K really sound much different than 100K?  
 

 
Replies:
Terry Jim,I have a Trayno... -- 8/30/1999 11:58 PM
Trace q{for mod #4, it sounds like you're... -- 8/31/1999 12:28 AM
jason /q{Also, for mod #4, it sounds like... -- 9/1/1999 12:08 PM