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: Fuzzman Re: Still Got Problems -- 12/20/1999 11:19 PM view thread

Try This

12/23/1999 8:17 PM
Farrow
Try This
I used to have that problem. There are two main things to do: put a 100K resistor from the output of the effect board to ground, making sure it's after the output coupling cap, and making the pull-up diode a Germanium device. Germanium diodes are much leakier than Si diodes, and there's more leakage current available to turn on the JFET. Realize that what turns the FET on is the diode's leakage current and what turns it off is puling the gate down to within 100K of ground. So right there are your two areas to check if it's not turning on or off.  
 
Farrow  
http://www.skybolt6.com  
 

 
Replies:
Llamma Found The Problem, It was the Diode... -- 12/27/1999 9:56 PM