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This new old stock, new in box (For Tube Two) matched pair of GE Red Label 6SN7GTB dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts, gas and transconductance. There were no shorts or gas.

Transconductance measured 80/83 for Tube One and 86/86 for Tube Two. (Minimum (65%) is 50/50.)

They have O getters; copper support rods; a round and square hole in each mica spacer; great flashing and 63-52 188-5 and 63-26 188-5 date/factory codes, respectively. T

I have played them in my Alan Eaton AC-heated, single-ended 45 amplifier and they sound great. They are dead quiet when the volume is muted and have excellent frequency response, sound-staging, and dynamics.

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Listed4 years ago
ConditionMint (Used)
Mint items are in essentially new original condition but have been opened or played.Learn more
Brand
Model
  • 6SN7GTB
Finish
  • Black
Categories
Year
  • 1950s
Made In
  • United States

Product safety information may be available here.

Lowtechelec

Haywood, VA, United States
Joined Reverb:2022

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