In Reply to: My 211 tube's getter flash has turned black very quickly posted by DAK on April 23, 2016 at 16:02:11:
Turned back tube amplifier quickly is the possibility of destroying!
High voltage amplifiers (as 211) often has voltage doubler circuit, (sometimes built with SS rectifiers). If the constructions does not contain HT delay circuit, the quick turn back possibly causes catastrophe (HT immediately presents, because HT PSU capacitors is fully charged).
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Follow Ups
- RE: My 211 tube's getter flash has turned black very quickly - euro21 10:13:02 04/24/16 (1)
- RE: My 211 tube's getter flash has turned black very quickly - DAK 11:18:40 04/24/16 (0)