In Reply to: How long do 6/12SN7s last in M60? posted by MP on February 9, 2017 at 09:34:15:
It depend on how many wattage each tube they carry.
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Follow Ups
- RE: How long do 6/12SN7s last in M60? - kablemetal@gmail.com 16:07:39 05/05/17 (0)