05-11-2024, 08:11 AM
Had to put in three new tube sockets and rewire them.
Put in just the rectifier. Got filament voltages for about 2 minutes and then nothing. No current draw. However I saw no issues like burning parts, heating transformer etc so that seems good. I got this DC hum through the speaker.
Turns out the rectifier tube is bad. I measured about 260 vac on the tube but very low voltage on the DC.
My other spare 5U4G tubes tested bad so I’ll order a new one.
I guess this is progress.
Put in just the rectifier. Got filament voltages for about 2 minutes and then nothing. No current draw. However I saw no issues like burning parts, heating transformer etc so that seems good. I got this DC hum through the speaker.
Turns out the rectifier tube is bad. I measured about 260 vac on the tube but very low voltage on the DC.
My other spare 5U4G tubes tested bad so I’ll order a new one.
I guess this is progress.
