eatyourguitar wrote:if the jfet is damaged from electrostatic discharge then it will be somewhere between working and not working. everyone needs to use proper storage and handling procedures when working with jfets. you should only buy them from sellers that have stored and handled them properly. do you even know if they are working authentic jfets? have you tested them? do you know how to test them? do you have proper samples of known working jfets to compare to?
Hi. Thanks for your advice.
The answer to almost all your questions is no... Sorry.
To be honest I've fixed a few pedals by audio probing and then trying and change parts. I order them from musikding or radiospares, so I never had a problem with those and manage to fix all the pedals I tried to fix.
That being said, I should probably learn more and work more professionaly, you're right, but being a hobbyist trying to fix stuff while my kids nap it's a bit hard to do.
If I may ask, where do you think the problem might come from ? If not the JFETS I thought I could maybe disonnect the TL072 outputs (pins 1 and 7) or maybe the XR2206 and see if it's still noisy, but that's be applying my "let's try this" approach one again.
I still haven't taken the time to check for parts values differences between my pedal and the schematic on this topic, but if someone has some spesific parts they's want to check don't hesitate to ask.
Thanks again , M Eatyourguitar !