3 RCA 6SN7GT Smoke glass silver label BLACK PLATES NOS NIB NEW USA balanced

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Seller: Top-Rated Seller rjputnak ✉️ (25,793) 100%, Location: Monongahela, Pennsylvania, US, Ships to: US & many other countries, Item: 124462942319 3 RCA 6SN7GT Smoke glass silver label BLACK PLATES NOS NIB NEW USA balanced.

3 RCA 6SN7GT Smoke glass silver label BLACK PLATES NOS NIB NEW USA balanced

Qty 3 tubes, RCA 6SN7GT NOS NIB NEW USA featuring design of rare SMOKE GLASS, silver label, black plates.  Estimate vintage as 1950s.  This design is among the best 6SN7 ever made. Test results -- each tube tests strong, uniform, and well-balanced: Tube #1 "1-13":
  • triode 1 = 3100 umhos
  • triode 2 = 3000 umhos

Tube #2 "222":

  • triode 1 = 2800 umhos
  • triode 2 = 2900 umhos

Tube #3 "213":

  • triode 1 = 2750 umhos
  • triode 2 = 2700 umhos
Test parameters for 6SN7 on Western Electric tube tester :
  • bias -4.2 filtered Vdc
  • meter scale 6000 micromhos
  • signal voltage 1.0 Vac
  • Min good transconductance 1700 umhos (each triode)
  • no shorts or leakage

[INV11]

  • Condition: New
  • Country/Region of Manufacture: United States
  • Type: NOS Tube
  • MPN: 6SN7GT
  • Brand: RCA

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  •  Popularity - 7 watchers, 0.0 new watchers per day, 1,217 days for sale on eBay. Super high amount watching. 0 sold, 1 available.
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  •  Seller - 25,793+ items sold. 0% negative feedback. Top-Rated Plus! Top-Rated Seller, 30-day return policy, ships in 1 business day with tracking.

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