[codefox1]

Schematic is here:
http://www.nostalgiaair.org/PagesByModel...013591.pdf

Is this what you have? If so, and you are operating from 120 volts, no line dropping resistor would be needed, and none is shown on the above referenced schematic.

Please post a copy of your schematic if it is different, or tell us what modifications were done, i.e. using different tubes, etc...