I replaced the output tubes with vintage good tubes and preamp tubes with all new ones.
As soon as I switched the standby on I got a Loud Hum or short that sounded kinda like an unplugged guitar jack that was shorted.
This noise was not affected by any changes to the amp controls and so I immediately switched it off and made adjustments while in standby and continued to troubleshoot.
I gave up and the next morning it was gone.
Any suggestions?
Also: I have a ringing when playing. I think that is a "micro phonic" preamp tube, so I will start the swapping procedure to move that tube to a less sensitive spot in the chain.
All suggestions are appreciated and thanks for reading.
As soon as I switched the standby on I got a Loud Hum or short that sounded kinda like an unplugged guitar jack that was shorted.
This noise was not affected by any changes to the amp controls and so I immediately switched it off and made adjustments while in standby and continued to troubleshoot.
I gave up and the next morning it was gone.
Any suggestions?
Also: I have a ringing when playing. I think that is a "micro phonic" preamp tube, so I will start the swapping procedure to move that tube to a less sensitive spot in the chain.
All suggestions are appreciated and thanks for reading.