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In Reply to: the 6cg7 is a 9 pin version of the 6sn7 posted by DAK on October 6, 2016 at 12:46:07:
If sturdiness is important, look to the Loctal 7N7. Remember, Loctal tubes were intended for mobile applications and are vibration resistant. While the 6SN7 and 7N7 are electrically equivalent, the Loctal version is an all but certain winner in a microphonics contest.
Regardless of branding, Loctal tubes were made at Sylvania's Emporium, PA, plant. Keep the good "press" Sylvania 6SN7s get in mind. You know damned well that Sylvania made 6SN7s and 7N7s from the same "cages", at the same time. Anything else would have been bad for profitability.
Eli D.
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Follow Ups
- RE: the 6cg7 is a 9 pin version of the 6sn7 - Eli Duttman 13:09:28 10/06/16 (1)
- RE: the 6cg7 is a 9 pin version of the 6sn7 - DAK 13:48:11 10/06/16 (0)