Peavey special 212 Loud hum

[Enzo]

leave it on for a little while, then touch the top of each IC. ANy getting hot? That might be loading the rail down.

Is the output of the regulator - or zener if that is the deal - still at +15 but +4 at the UC, or is it +4 there too? Three leg Vregs are cheap, I usually just swap it to find out myself.

[AutoTech]

Hey guys,
Thanks so much for all the help! I found the resistors between the transformer and the rectifier were all smoked. replaced those and it works. The "Ultra" and "Lead" settings sound a little off but then I'm not familiar with how this amp normally sounds. The "Ultra" setting especially sounds somewhat like static. But the "Clean" channel sounds real nice.
Thanks again all.