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In Reply to: RE: Anyone ever see a grey glass Sylvania 6sn7 before? posted by Sondek on September 3, 2021 at 07:58:02:
The coating is on the inside. The tube is plugged into an octal adapter so I can use it in my preamp. Here's another image that makes it look like one of the RCA grey glass 6sn7 tubes.
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- RE: Anyone ever see a grey glass Sylvania 6sn7 before? - isaacc7 20:22:32 09/03/21 (0)