Hi, I have an old (used to be my dads in the 70's) Sansui amp which has a lovely sound but the other day the left output developed mains hum. First it was intermittent but now it's permanent. I've swapped out speakers etc so it's def the L output of the amp and there's no buzz when there is no i/p connected. There has been a bit a crackle on the gain pot but assume that's just dust on the carbon tracks. When I touch the wires of the gain pot the buzz appears even with no i/p connected. Have checked for dry joints etc but nothing obvious. Can anyone help ? It would be a shame to lose this amp because it reaaly does have a sweet sound.
Thanks.
Thanks.