u/Fritzo2162

I've had this Egnater 15 for 10 years and it's a great recording amp, but a couple of years back it developed a hum that I can't track down. I put in new tubes, swapped the power supply...nothing. The hum is affected by the master volume only- none of the other controls affect it, and it's there if a guitar is plugged in or not. I recently dug it out of storage and decided to see if there's anything I can do with it. Any ideas?