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In Reply to: Intermittent Microphonic Tube/300B Choice posted by Sibelius on October 14, 2021 at 09:04:32:
over many years I had a couple tubes that would do the same and tried resoldering the leads inside the pins - just a pinch. Assembly lines aren't perfect and once in a while something slips thru QC.
It could also be a weld on the connections inside but nothing I know of can fix that.
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- RE: Intermittent Microphonic Tube/300B Choice - Story 12:13:16 10/14/21 (0)