Matched Pair General Electric GE 6K6 6K6GT Vacuum Tubes Black Glass NOS-Testing Majel Barrett C Grafica s

C Grafica s

7/2750 for Tube Two

This new old stock-testing RCA black plate 6CG7 / 6FQ7 dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

Transconductance measured 49

new in box RCA 5Z4 -- and another just like it -- tested to spec on on our Paul Hart-calibrated TV7/U

Matched Pair General Electric GE 6K6 6K6GT Vacuum Tubes Black Glass NOS-Testing Majel Barrett C Grafica sThis new old stock TESTING matched pair of GE 6K6 6K6GT tubes was tested on our Maxi Matcher 2 with 325 volts on the plates and a bias of 36 volts for shorts, gas, plate current and transconductance. There were no shorts or gas. Tube One measured 2200 micromhos, 34. 5 milliamps' plate current. Tube Two measured 2040 36. 1. New nominal is within one standard deviation of 1900. These tubes have copper support rods; rectangular mica spacers; black and