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Original Message
RE: How long did you run them in before hitting them with high voltage?
Posted by PakProtector on March 4, 2017 at 05:28:11:
I had only one failure. It was a Taylor glob, and I ran heater power for an hour. When I ran AC through it, cathode coating would get blown off in little sparks. Not sure what had happened; by the time an hour was up, the bottom of the envelope was goated in Hg, and the rest of the glass was clear...
cheers,
Douglas