Quote:
Originally Posted by Pio1980
The series string doubler electrostat should have had a heater transformer on the jug to extend its service life.
Do any restorers do this for working display sets?
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Some, though there's a better option. TVS (transient voltage suppressor) diodes (8.2V IIRC) in parallel with the heater will clip the peaks off the AC voltage clamping true AC RMS voltage at 6.3V. I'm planning on installing them in all my series sets next time I can place a mouser order.
The person that came up with this has a great scientific thread explaining how they work/how he came up with it over on ARF.