Zenith 6K6 6K6G Vacuum Tube Black And Silver Glass Shoulder ST-Shape NOS-Testing Guest Star Tube Three measured 62

Tube Three measured 62

Both are acid-etched

This RCA 30KD6 tube tested to spec on our Paul Hart-calibrated TV7/U

44/50 and 52/50 where minimum (65%) is 40/40 and 100% is 62/62

Zenith 6K6 6K6G Vacuum Tube Black And Silver Glass Shoulder ST-Shape NOS-Testing Guest Star Tube Three measured 62This new old stock testing Zenith 6K6 6K6G tube was tested on our Maxi Matcher II with 325 volts on the plates and a bias of 36 volts for shorts, gas and transconductance. There were no shorts or gas and it measured 1800 micromhos and drew 32. 3 milliamps' plate current. (New nominal transconductance is within one standard deviation of 1900.) WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY