Wiring of the new output transformer:
The feedback loop
solder the two leads with same color (green/yellow/red) together.
Make sure they are well isolated. The other two wires should have a
resistance of about 10Ohms now.
solder the red/yellow/black wire to the third connector
solder the red/yellow cable to the 9th connector
1d parallel the 20k resistor with a 5k resistor
2 Connect the
center tap of the plate winding (two leads in one isolation)
to the filter cap.
3 Connect the plate
windings (the winding from plate to plate has a DC resistance of
about 240 Ohms) to each Pin 3 of the EL34 sockets.