My Retrotone modded sessionte 75 has developed a fault, very loud hum which gets worse the higher the volume, I do have a signal going through.
I'm no expert but can do simple jobs so I replaced the two mosfets in the power module and also uppped the wattage on a 12k resistor that I read can fail, also as they are cheap and socketeted I replaced the 4 ic's.
I will replace the two filter caps next as they have been there for over 20 years so that won't hurt.
Any other tips or things to check out before I give up and take it to a tech would be much appreciated.
I'm no expert but can do simple jobs so I replaced the two mosfets in the power module and also uppped the wattage on a 12k resistor that I read can fail, also as they are cheap and socketeted I replaced the 4 ic's.
I will replace the two filter caps next as they have been there for over 20 years so that won't hurt.
Any other tips or things to check out before I give up and take it to a tech would be much appreciated.