Matched Pair General Electric GE 6FQ7 / 6CG7 Vacuum Tubes Valves NOS NIB Copper Support Rods Top Filaments Philips Nonal new in box GE 14Q7

new in box GE 14Q7 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box National Union 7Y4 tubes in this lot

new in box Philco 7A5 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box Tung-Sol 6SF5GT tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair General Electric GE 6FQ7 / 6CG7 Vacuum Tubes Valves NOS NIB Copper Support Rods Top Filaments Philips Nonal new in box GE 14Q7This new old stock, new in box (For Tube Two) matched pair of GE 6FQ7 6CG7 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 74 74 while Tube Two measured 75 75 where minimum (65%) is 50 50 and 100% is 77 77. These tubes have copper support rods; top O getters, gray ladder plates; top filaments for a nice light show (please see Picture Four); three horizontal