3 CBS 6K6 6K6GT Vacuum Tubes Valves Lot Of Three Lot Of Five 108/77 and 115/84

108/77 and 115/84

This new old stock-testing matched pair of RCA 1625 / VT-136 output triodes was tested on our Paul Hart-calibrated TV7/U for shorts

This matched pair of Sylvania gray glass 7C5 tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volt for shorts

Tube Three measured 62

3 CBS 6K6 6K6GT Vacuum Tubes Valves Lot Of Three Lot Of Five 108/77 and 115/84These three CBS 6K6GT tubes were 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 1380 micromhos and drew 10. 6 milliamps' plate current. Tubes Two and Three measured 1230 16. 7 and 1830 20. 2, respectively. New nominal is within one standard deviation of 1900. And they sounded fine in our Mini Mite 2013 WE HAVE SCORES OF