Vintage 1950s Tung Sol 6SN7GTB black plate tube in a Selectron box. Appears to be a Tung Sol or Sylvania manufactured tube based on the construction. Tests strong on my B&K 707 tube tester. Here are the results for mutual conductance with 65 being a good tube & 90+ being NOS; 83/85 Great tube for your amplifier or hi-fi needs!
| Listed | 2 years ago |
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| Condition | Excellent (Used) Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more |
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