Matched Pair Tung-Sol 6AR6 6AR6WA Milspec Industrial Vacuum Tubes Valves NOS-Testing 36MC6A Novar Transconductance measured 40/50 for Tube

Transconductance measured 40/50 for Tube One and 45/45 for Tube Two where minimum (65%) is 32/32

This happens perhaps once -- maybe twice -- per decade

new in box US-made 38HE7 tubes tested to spec on our Paul Hart-calibrated TV7/U

Tube Two: 46/48

Getters: mid-bottle

Matched Pair Tung-Sol 6AR6 6AR6WA Milspec Industrial Vacuum Tubes Valves NOS-Testing 36MC6A Novar Transconductance measured 40/50 for TubeThis new old stock testing matched pair of milspec industrial Tung Sol 6098 6AR6WA output tubes was tested on Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 42 while Tube Two measured 44 where minimum (65%) is 27. These are beautiful tubes! Each has six mica snubbers for increased resistance to vibration; flashing is excellent and the bases appear to be made of micanol. WE HAVE SCORES OF