Unless you have experience working on electronics, it's best to get a pro to look at it. High voltages etc.
AUDIO RESEARCH PH7 troubleshooting
Hello I've got a problem with my PH7, the right chanel becomes more and more noisy. Of course I changed all tubes, but the noise is still there. I ve heard about a probleme with some resistors on this preamp that became noisy , is there someone who has this problem and solves it ?Thanx