Matched Pair RCA 6CG7 / 6FQ7 Vacuum Tubes Valves With Shields And Anode Radiators NOS-Testing February 06 2023 Tube One (missing centering pin

Tube One (missing centering pin / keyway): Tube Two:

A 7 out of 10

It measured an almost-perfectly-balanced 59/57 where minimum (65%) is 40/40 and 100% is 62/62

3 rather than 12

These three GE GE 5-Star industrial 6265 tubes tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair RCA 6CG7 / 6FQ7 Vacuum Tubes Valves With Shields And Anode Radiators NOS-Testing February 06 2023 Tube One (missing centering pinThis new old stock testing matched pair of RCA Hazy Top 6CG7 6FQ7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and transconductance measured as follows: Tube One: 72 78 Tube Two: 76 77 Bogey: Minimum (65%) is 50 50; 100% is 77 77 Physical Characteristics: Bases: N A Bottles: tall Date Codes: none EIA Factory Codes: none Getters: mid bottle, D Flashing Quality: excellent