Good morning,
I'm trying to build a guitar preamp with a tl072. I'm learning very much trying and looking for schemas everywhere on the net, but I coulden't make any of them work properly. I really don't understand what's the problem with it, so I'm posting you the schema I made. It works, but I still have lot of noise from the input (if I ground the input the noise disappear, so I think it's not the power source). Further more, the guitar is not the problem, because it is very silent one having a faraday cage on the pickups.
Can you help me to solve this problem, please?
Ale