[Hallicrafters] HT-37 Transformer Voltages

[Bill]

As I continue my rebuild of an HT-37, I decided to check the
main transformer voltages without tubes in the rig.  I have the
service manual for the transmitter, but no where can I find what
the nominal (unloaded) AC voltage should be from the various
transformer taps.  The voltage chart indicates DC voltages at
various tube sockets but I can't find any reference to AC voltages
from the transformer windings.

The reason I am concerned, is as I raised the line voltage on the
main transformer, I was measuring the line to line (red leads) from
the transformer and at abot 75vac, I was already over 1kv on the plate
leads to the HV rectifier.  With a published 750vdc from the HV rectifier,
I know the voltage must be higher than this level.  But, how much higher?

Does anyone have an AC voltage chart for the main transformer?  This would
help greatly in my efforts.

K2WH