Matched Trio RCA 6FQ7 / 6CG7 Vacuum Tubes Valves 6KU8 Noval great flashing and black

great flashing and black

milspec GE JG-6X4WA tested to spec on our Paul Hart-calibrated TV7/U

new in box RCA 6HV5A tubes tested to spec on our Paul Hart-calibrated TV7/U

Tube Two Plate Current Draw: 27

dark gray rounded plates and excellent flashing

Matched Trio RCA 6FQ7 / 6CG7 Vacuum Tubes Valves 6KU8 Noval great flashing and blackThis matched trio of RCA 6FQ7 6CG7 dual triodes was tested on our TV7 U for shorts, gas and transconductance. There were no shorts or gas and their readings are as follows: Tube One measured 66 71 while Tube Two measured 68 67. Tube Three measured 70 70 where minimum (65%) is 50 50 and 100% is 77 77. These tubes have steel support rods; ladder plates; side D getters and excellent flashing. As I write, I am playing them with adapters (not included) in