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In Reply to: What if you tried a high-testing, brand new 12AT7 or 12AY7? posted by FenderLover on January 19, 2016 at 07:42:57:
These are all new tubes tested by a reputable vendor.
I have several brand names and they all do the same thing. Diminish hum ONLY in the one V5 preamp socket of a Sherwood S-5000 with increased usage hours.
The hum output is directly related to the hours on the tube. I have several name brands and several of each brand tube with various recorded hours on them. All showing this phenomena. I could actual graph it!
charles
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Follow Ups
- RE: What if you tried a high-testing, brand new 12AT7 or 12AY7? - airtime 07:47:08 01/19/16 (1)
- JOC - FenderLover 10:22:47 01/19/16 (0)