Matched Pair General Electric GE Black Plate 6CG7 6FQ7 Vacuum Tubes With Shields VT86 T67 I am playing them in

I am playing them in one of my RC-2 monoblocks with Super Furry Animals' "Radiator" and they sound great

a top crenelated

They have been tested on our Paul Hart-calibrated TV7/U where minimum (65%) is 40 and 100% is 62 and have the following values in descending order:

This lot of three Western European PCF802 / 9U8 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

Matched Pair General Electric GE Black Plate 6CG7 6FQ7 Vacuum Tubes With Shields VT86 T67 I am playing them inThis pair of GE black plate 6CG7 6FQ7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 61 60 while Tube Two measured 68 68 where minimum (65%) is 50 50 and 100% is 77 77. These tubes have steel support rods and top, harp shaped getters and anode radiators for cooler operation and longer tube life. There is also a shield between the triodes for reduced cross