Motorola VT-71M-A

[EdKozk2]

Originally Posted by dieseljeep

The voltage dropping resistor approach is OK, but I prefer the Capacitive-Reactance voltage drop method. The old-fashioned ballast tube, cushioned the warm-up of the tubes. The cap method does the same, without having to us inrush limiters.

Are you referring to the method of using a capacitor and lower ohm/ wattage resistor in series for the filament strings? I figured I'd try capacitive-reactance after I made sure the set was working. Anyone have experience with the resistor-diode in series with the filament strings? I purchased parts to try all three ways. If the capacitors ever short, couldn't that burn out the filaments in some tubes?
Best thing about all those power resistors is the heat they give off to keep me warm in a cold basement, it's air conditioned to keep the humidity down.
What I don't like about this set is running the entire filament load current through the 7JP4. I'd hate to wreck a brand new 7JP4 that I bought in 1974.
Ed