6 RCA 6K6 6K6GT Vacuum Tubes Gray Glass Lot Of Six Gebraucht RCA 6U7 These matched pair of Philco

These matched pair of Philco 24 globe

Both tubes measured 72 where minimum (65%) is 55 and 100% 85

They measured (from left to right) 59

There were no shorts or gas and it measured 40/44 where minimum (65%) is 32/32 and 100% 66/66

This General Electric GE 5 Star 6080 / 6AS7 dual triode output tube was tested on our Paul Hart-calibrated TV7/U for shorts

6 RCA 6K6 6K6GT Vacuum Tubes Gray Glass Lot Of Six Gebraucht RCA 6U7 These matched pair of PhilcoThis 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