Several folks have mentioned that the typical Wall Wart transformer is designed for 120VAC input on the primary and 6 or 12VAC on the secondary  and that I can not use it for my 50-100 volt bias supply. Well - - - I had a spare 6 volt AC winding on my HV supply so I simply connected the Wall Wart transformer backwards  to the spare 6 volt winding - 6 volt secondary is now the input and I can take the output from the  primary 120 volt winding. I get all most 90 volts before the capacitor choke filter.  
Improvise - Adapt - Overcome
Z