[ipwizard]

Just started on a Philco 38-15 a couple weeks ago. Got all the caps replaced along with all of the out of tolerance resistors. It comes up and plays but there is a bad 60hz hum coming coming out of the speaker. I used my signal tracer and traced back through the circuit and I don't pick it up in the 6A7, but I do pick it up on the 78 tube. I haven't been able to track down where that hum is getting into the audio from.

If anyone had any ideas let me know.

I have double checked that the E-caps are connected correctly.

Schematic here:
http://www.nostalgiaair.org/PagesByModel...013239.pdf