In Reply to: RE: Operating 71A above published max plate voltage posted by Donald North on July 23, 2017 at 10:04:33:
Along with what Phil said, yes, so they damaged a tube or two to draw a complete set of curves. That was/is part of the expense of manufacturing electronic devices!
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Follow Ups
- RE: Operating 71A above published max plate voltage - Caucasian Blackplate 10:35:23 07/23/17 (0)