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In Reply to: Valvo 6201 What do I have? posted by Permanent Waves on December 23, 2016 at 13:02:06:
that the Blue labelled were for medical equipment. His tubes were very nice. I used my Blue labelled 6201 in a phono stage where it sound very good.
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Follow Ups
- RE: I was told by a tube collector from Germany - DAK 13:47:17 12/24/16 (0)