Matched Pair Sylvania 6K6 6K6GT Vacuum Tubes Silver Tops You Got To Pay These nine US-made 6C5s were

These nine US-made 6C5s were tested on our Paul Hart-calibrated TV7/U for shorts

The dust jacket shows some wear

with a very low noise floor and excellent soundstaging

mica snubbers for increased rigidity and lowered microphonics and excellent flashing

Matched Pair Sylvania 6K6 6K6GT Vacuum Tubes Silver Tops You Got To Pay These nine US-made 6C5s wereThis new old stock TESTING matched pair of Sylvania silver top 6K6GT tubes was tested on our Maxi Matcher tube tester with 325 volts on the plates and a bias of 36 volts for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 1690 micromhos and drew 19. 6 milliamps' plate current. Tube Two measured 1740 19. 8 where new nominal is within one standard deviation of 1900. These 6K6s are among the best looking, most solidly