4 Strong Matched Sylvania Coin Base Black Plate Top O Getter 6SN7GTB Tubes QUAD
You are buying:
4 Strong Matched Sylvania Coin Base Black Plate Top O Getter 6SN7GTB Tubes
Logos worn off as pictured - Nice QUAD
Made in USA
Tested on a calibrated tester at: 128% / 124% , 124% / 124% , 120% / 122% & 120% / 120%
MINIMUM reading is 70% , NEW (NOS) reading is 100%+ & MAX reading is 130%
All tubes are tested for filament, leakage, Dynamic Mutual Conductance and emission value
Also tested and worked good in our equipment with no microphonics or shorts
Tubes passed ALL tests
Sold as is as Pictured as Described
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