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Voltage regulator gas tube question

I have 2 monoblock amps and each uses one 0A2 tube to provide ~150 volts to the plate of the input/driver tube. One is working fine, but the other measured 165 volts. When i put another 0A2 in its place I got the voltage I wanted. Is the one providing 165 volts defective? To the best of my knowledge it is new and never used. I really don't understand how these things work so any answer would only add to my limited understanding. TIA


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Topic - Voltage regulator gas tube question - vetmedrobert@gmail.com 09:19:27 07/26/17 (11)

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