Brand new ones will be fine. www.tubesandmore.com

Yours should have had 525-volt, since there's more than 450 volts on them.



You're right. It's the AB763 schematic which specifies 525. Most of the
working voltages are around 450.

There's also some 25/25 in there. I'll probably just change the 20/525's, the
50/50 in the bias circuit and the 25/25's.

Thanks for the hi-voltage warning, but I'm already familiar with that. I
usually just unplug from the wall and do the screwdriver to chassis welding
function. I used to work on microwave ovens and those trash cans can flat ruin
your day alright.

Thanks for the help


--Wayne

-"sounded good to me"-