Princeton Reverb PT again?

[Randall]

No, the owner is a very hands off guy. No one else used the amp, and I'm sure he doesn't feel at ease doing anything to his amps. This is at least partially why he is under the "keep everything original" spell. He just doesn't know any better. Very nice guy, though.

[Enzo]

Well, I always return the old parts when I do a repair.

[nickb]

If the new one is rated at 100mA maybe a slow blow fuse added in the HV center tap circuit might off some protection against overload for whatever reason.

BTW I see the PT offered by Classictone for this amp appear to have different physical sizes so best check the one you have.

[vintagekiki]

I am a bit surprised the mains fuse didn't blow before the transformer cooked, though.

Maybe the user per the good old habit bypass fuse with a thicker wire (to save $)

[glebert]

I am a bit surprised the mains fuse didn't blow before the transformer cooked, though.

Fuses don't blow very quickly, or even at all, for currents that are maybe 1.5x their rating. Check out the time curves on this datasheet (https://www.eaton.com/content/dam/ea...data-sheet.pdf). A 4A fuse will pass 5A pretty much indefinitely. Presumably the amp designers realize this, but a slightly elevated current level might be uncommon enough that they don't overdesign a PT just for it.

[Jazz P Bass]

Feel like rolling the dice?
This guy is offering the same transformer: https://reverb.com/item/6411808-fend...er-transformer
$35.00

[vintagekiki]

Feel like rolling the dice?
This guy is offering the same transformer: https://reverb.com/item/6411808-fender-p-tf22772-power-transformer
$35.00

"Smells" like it's rewound, it has 6 wires.
AA1164 has 10wire.

[mozz]

Do you have a picture of the back of it? I can bet there are more than 6 wires. Sold anyway.

[vintagekiki]

#21

https://reverb.com/item/6411808-fender-p-tf22772-power-transformer
1)

[g1]

P-TF22772 is an aftermarket replacement part with 9 wires. It is from CE distribution. It is the same type as Randall used last time he replaced the PT.

[Randall]

That is correct. That photo is exactly what is in this amp presently, from CE Dist. Nine wires, not six.