Matched Pair Sylvania Uncle Doug 6L6 6L6GC Vacuum Tubes Valves NOS-Testing October 10 2022 This lot of eight 6CG7

This lot of eight 6CG7 / 6FQ7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

These ten Sylvania 29LE6s tested to spec on our Paul Hart-calibrated TV7/U

respectively where minimum (65%) is 57/57

charcoal plates and excellent flashing

These Six RCA small logo 6F5s were tested on our Paul Hart-calibrated TV7/U for shorts

Matched Pair Sylvania Uncle Doug 6L6 6L6GC Vacuum Tubes Valves NOS-Testing October 10 2022 This lot of eight 6CG7This matched pair of new old stock TESTING Sylvania 6L6GC "Uncle Doug" output tubes was tested on our Maxi Matcher with 400 volts on the plates and a bias of 48 volts for shorts, gas and transconductance. There were no shorts or gas and they tested as follows: Tube One: Tube Two: Transconductance: 2490 micromhos Transconductance: 2670 micromhos Plate Current Draw: 31 Plate Current Draw: 34. 5 (New US made 6L6GCs typically test with plate current from