Hi guys,

Little problem with my very nice Rogers T75 tuner; It has hum...

Found it with a resistor burned on the P.S. card. Replaced it with 10ohms, what I think the old one was but didn't seems to be right (it runs pretty hot even if I put 1/2 watts instead of 1/4 like it was). This resistor is just after the transfo and before the diode bridge. Then a little cct with a 15 volts Zener and 2 little transistors makes it to the other cards. I will add pictures tonight. This gives 19 volts to other tuner cards; I think it is too much... I've tried replacing the existing capacitors with little improvement. Replaced the Zener with same results ...

Sound is pretty good though; I like it pretty much ! But... can't stand hum !!!:no:

Anybody know what voltage I should have ?

Anybody has schematics ?

Tks !