siliconray
Member
Oh Bob, you didn't tell me you swapped a pair of 807. The power of transformer is not enough for 807, it needs more plate current.
I think I just blew the transformer in this amp. I swapped in a pair of 807 tubes with socket adapters. After about 5 minutes the 5Y3 had a fire inside the tube which I caught after about 10 seconds, powered off. Took out the 5y3 swapped in the 5Z4 and put the 6L6 tubes back in and the amp worked for about 30 seconds and the tranny started to smoke. Damit. Looks like I'm going to need a new transformer. Is there a good one for this setup from Edcor/ Angela that someone can recommend?? Looks like I will have a challenge with size of a new one but I would be grateful for any suggestions.
I tried the 807s before with the 5Z4 rectifier and didn't have any issues. The rectifier looked like it went into thermal runaway ... fire inside the tube..Maybe 807 tubes not a good match for the 5Y3. ?? What else may I have blown?
Cheers,
Bob