Zenith Power Transformer Connections

[Electronic M]

I don't know if I have any literature or not, but a safe-ish way of finding out what is what that I have used in the past is to take a 6.3V transformer (or tap into the heater windings of another set) and try connecting them to the ends of different windings of the mystery transformer. I then look at the voltages the other windings produce. Eventually you will find an input winding that makes another output winding produce around 120VAC and all other windings produce sane readings. By using 6.3V as the input you reduce the chance of damaging the lower voltage windings by applying too much voltage/current to them.

Just be careful not to let winding shorts happen from the loose leads touching, and be careful not to touch more than one lead at a time.