6 RCA 6K6 6K6GT Vacuum Tubes Gray Glass Lot Of Six 8FQ7 RC2 And though this tube tests

And though this tube tests two standard deviations from the mean

64 and 70 where minimum (65%) is 49

All measured 2100 micromhos where new/nominal is 2000 and minimum (65%) is 1300

I am playing them with adapters (not included) in one of my Radio Craftsmen RC-2 monoblocks and they sound great

6 RCA 6K6 6K6GT Vacuum Tubes Gray Glass Lot Of Six 8FQ7 RC2 And though this tube testsThis lot of six RCA gray glass 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 and they measured as follows (from left to right, top to bottom): Tube One: 17. 1 milliamps' plate current 1220 micromhos; Tube Two: 19. 6 1810; Tube Three: 20. 9 1440; Tube Four: 23. 6 1720; Tube Five: 25. 2 1410 and Tube Six: 31. 6 1890. New