Egnater Vengeance bad output

[xtian]

Egnater Vengeance (hi, Bruce!) on the bench with low and distorted output. Preamp signal is fine, PI is good, strong (400+ V p-p) signal at EL34 grids. But signal at EL34 plates is very ugly, and amp's output is only 4 watts max, and distorted.

Power tubes are properly biased, voltages at all plates (~460), screens (~455) and control grid (-41) are good. Also, I tried a fresh set of JJs, same results.


Any other tests to run before calling it a bad OT?

[The Dude]

https://www.premierguitar.com/articl...ormer-tester-1

[xtian]

Well, all right. I used the neon bulb test on a good transformer and saw the flash. I repeated the test on the Egnater OT and did not get any flash. Thanks, Dude!

[The Dude]

I'm not sure I've ever been thanked for helping someone find out they needed an expensive transformer before, but glad you got it figured out.

[xtian]

Well, it ain't mine, man.

[Enzo]

And were all the transformer wires disconnected from the circuit? Just to be sure.

[xtian]

Yes, ALL OT wires totally disconnected. They're all on spade connectors. I wanted to make sure I didn't flub the test.