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In Reply to: there must be a scientific reason for tube break-in posted by airtime on January 18, 2016 at 06:55:30:
This is also measurable. A lot of new Russian tubes will increase their emission over the first 50 or so hours you use them.
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Follow Ups
- RE: there must be a scientific reason for tube break-in - Caucasian Blackplate 09:44:31 01/18/16 (0)