power tranny?

[chuckb]

Hey guys, i'm looking to build a AX84 with some 20 watt trannys I have here. I have the Doberman single ended OT and I also have a 20watt power tranny which came out of a Jet City 20 . The schematic that I obtained from AX84.com website calls for a PT with a center tap. So my question to you guys is can I use the Jet City 20 watt tranny that doesn't have a center tap for this build?

Chuck.

[Bruce / Mission Amps]

A center tap for the filament string or the high voltage?
You don't need a center tap for either, actually.
I have no idea what the voltage is across your Hi-V secondaries but, you would use the high voltage supply wires into a full wave bridge rectifier.
And if it is the filament windings you are questioning, then a virtual center tap with a couple 100 ohm 1/2 watt resistors across the low voltage leads, (common point of the 100 ohms resistors grounded) is all you need.