thanks guys. I will now sort it out.
Fred, thanks for prodding me to go back and look closely at all
the circuits in the Thordarson transmitter book (which I had
downloaded from the bunker of doom, thanks Pat!).
The puzzler is that with the ct (10+11 pin shorted to ground)
this xfmr can get 15 voltages (5 primary taps, and 3 secondary
taps on each side of the ct)...but there are 19 voltages between
10 and 100
Time to put it under (some) voltage.
Peter