BUGERA 1960 Output Trans Mod

[corvairdoug]

I'm replacing the output transformer on a Bugera 1960 Infinium for a friend. He bought the Magnetic Components Inc Classic Tone to replace the stock one.
The stock transformer has Black, Orange, Yellow, and Green wires on one side, and Red, Blue, Brown on the other. The new one is the same on the 4 wire side, but the 3 wire side has Red, White, and Blue.
I would like to know which of those 3 wires are which on the new trans. I contacted amp parts direct, but they weren't much help.
There is also a Yellow wire with Green stripe connected to one of the nuts, I'd like to know what that is attached to in the harness.
Thanks!

[Carbia]

Blue and red go to the plates, white is the center tap and is the B+voltage input.

If you measure the resistance, the resistance between red or blue and white is half of the resistance between red and blue.

Do the same with the original transformer and you'll find out what you want.

[Haze13]

If it will oscillate just switch positions of the plate wires between them.