Matched Pair General Electric GE 6FQ7 / 6CG7 Vacuum Tubes NOS NIB Copper Support Rods Top Filaments Gold Brand GB-6X4WA They have 3-13 188-5 and

They have 3-13 188-5 and 3-26 188-5 date/provenance codes

new in box GE 10GK6 tube tested to spec on our Paul Hart-calibrated TV7/U

This matched pair of silver top Sylvania 6V6GT output tubes was tested on our Maxi-Matcher 2 for shorts

I just cleaned this double album on my VPI 16

Matched Pair General Electric GE 6FQ7 / 6CG7 Vacuum Tubes NOS NIB Copper Support Rods Top Filaments Gold Brand GB-6X4WA They have 3-13 188-5 andThis new old stock, new in box matched pair of GE MANUFACTURED 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 (RCA LABELED) measured 76 80 while Tube Two measured 78 80 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; three horizontal holes