Tech-Master NIB TV Kit #5516

[dieseljeep]

Originally Posted by Crist Rigott

I could boost the line voltage by 10 volts. Would that hurt the filament string?

I forgot to mention using a Variac. Many will put out 140 volts.
You can boost the B+ by using a 12V heater transformer, rated at around an amp, connected boost. Connect it before the rectifier and you'll just increase the B+, without increasing the heater string.