Matched Pair RCA-Victor 6K6 6K6GT Vacuum Tubes August 22 2024 D getter and nice flashing
$13.32
Description
D getter and nice flashing
Tube One measured 55 while Tube Two measured 60
They measured 102/83 for Tube One and 104/78 for Tube Two where minimum (65%) is 57/57 and 100% is 88/88
Transconductance measured 2100 micromhos for Tube One and 2175 for Tube Two
probably from the second half of the 1920s
Matched Pair RCA-Victor 6K6 6K6GT Vacuum Tubes August 22 2024 D getter and nice flashingThis matched pair of RCA Victor dark gray glass 6K6GT tubes was tested on our Maxi Matcher tube tester with 325 volts on the plates and a bias of 36 volts. Tube One drew 16. 6 milliamps' plate current while Tube Two drew 18. 6. Transconductance was 1240 for Tube One and 1380 for Tube Two where new nominal is within one standard deviation of 1900. These tubes have tall bases; matching 9 39 date codes; dark gray bottles and bottom, D getters. As I
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