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In Reply to: I thought all 7N7 tubes were made by Slyvania? posted by Frihed89 on January 25, 2017 at 22:04:54:
Some NU 7N7 were made by Sylvania having the angled plates. NU also made round plates.
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Follow Ups
- RE: I thought all 7N7 tubes were made by Slyvania? - sony6060 03:59:22 01/26/17 (0)