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SYLVANIA 6AS7 6SN7GTA Tubes. For DarkVoice BottleHead xDuoo TA-26 Headphone

$ 39.6

  • Brand: SYLVANIA
  • Country/Region of Manufacture: United States
  • Model: 6080 6SN7GTA
  • Type: Vacuum Tube

Description

Sylvania 6AS7GA/6SN7GTB Tubes. DarkVoice BottleHead Crack. Test Strong and Balanced. Each set of tubes has been tested, then listened to on my DarkVoice amp. They are run and listened to for an extended time to allow tubes to fully warm. I listen for any humming or microphonics, and balance in these pairs. Buy with confidence that they will perform for you! Testing is done with Superior TW-11 Tester. This tester is a cathode emission tester. The results are useful for relative matching of same type tubes, and also a good/bad result. Tubes are checked for filament continuity. The results should be taken as a general indication of tube health. I am happy to combine shipping on multiple purchases.