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In Reply to: RE: RCA 5691 Vacuum Tube posted by Triode_Kingdom on July 22, 2021 at 16:39:52:
Thank you for your thought. After hearing from other users and some researches, I begin to believe it is really caused by the getter flashing process during the manufacturing of these tubes. Nevertheless, these tubes are working fine, I will run them for sometime and will report back if any abnormalities occur.
Take care.
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Follow Ups
- RE: RCA 5691 Vacuum Tube - tlowe 21:49:31 07/22/21 (0)