Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes Zenith NOS NIB new in box US-made 6CG8A

new in box US-made 6CG8A tubes tested to spec on our Paul Hart-calibrated TV7/U

rectangle top mica spacers with chevrons

This album sounded pretty good

new in box RCA 36MC6 / 36MC6A tubes tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes Zenith NOS NIB new in box US-made 6CG8AThis matched pair 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 60 56 while Tube Two measured 61 58 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 my Radio Craftsmen RC 2