General Electric GE 6U8 6U8A 6AX8 5KD8 6KD8 ECF82 Vacuum Tube Valve NOS NIB Facades Suites Both tubes measured 30 where

Both tubes measured 30 where minimum (65%) is 22

excellent silkscreening and 312 132 provenance/date codes

IF A TUBE FAILS AFTER YOU GET IT

new in box milspec Sylvania JAN-0A2WA tube -- and another just like it -- tested to spec on our Paul Hart-calibrated TV7/U

42/44 and 45/46 where minimum (65%) is 33/33 and 100% is 51/51

General Electric GE 6U8 6U8A 6AX8 5KD8 6KD8 ECF82 Vacuum Tube Valve NOS NIB Facades Suites Both tubes measured 30 whereThis new old stock, new in box GE 6U8A (ECF82 6AX8 5KD8 6KD8) pentode triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 96 78. Minimum (65%) is 57 57 and 100% is 88 88. As I write, I am playing it using an adapter (not included) in our Dynaco Stereo 70. It sounds great with Pink Floyd's "Obscured By Clouds," replicating this album's nuances and dynamic range with