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In Reply to: RE: RCA/Sylvania posted by erik on February 11, 2021 at 17:00:14:
Those are the black glass NU. Not a bad tube, but not the equal of the gray glass tube. The color of the coating on the glass is much closer to the color of your RCAs.The link is one I found with a quick Google. No association with this auction or seller.
Edits: 02/11/21
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Follow Ups
- RE: RCA/Sylvania - Sondek 20:45:31 02/11/21 (1)
- Thanks (nt) - erik 07:38:45 02/12/21 (0)