I have been planning a while to build a televisor, and am getting the parts assembled, which is why i have so many topics lately. I found a schematic for a televisor and i plan to copy that circuit and integrate it into my own model. Originally, for the resistor connected to the wandering lead, i was planning to use resistors connected in a series. while at radio-shack during there closing sale, i planned to purchase some various resistors. But, before i could find the resistors, i came across a in-wall volume control, which had a maximum wattage of 100 watts. It also had a maximum voltage of 450 volts. So, instead of using the resistors, i plan to use the volume control, which has an off position and 12 other positions. I would connect that to an extra rheostat, as the circuit has. On the receiver i would have an extra knob though.
The control:
The schematic:
http://www.earlytelevision.org/pdf/baird_svc_manual.pdf