Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes 2 Lot Of Two new in box matched pair

new in box matched pair of RCA steel plate 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U tester for shorts

new in box matched pair of GE-MANUFACTURED 6FQ7 / 6CG7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

new in box US-made 6KZ8 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box GE 6BD6 tubes tested to spec on our Paul Hart-calibrated TV7/U

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Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes 2 Lot Of Two new in box matched pairThis matched pair of RCA 6FQ7 6CG7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and transconductance measured as follows: Tube One: 54 68 Tube Two: 58 65 Bogey: Minimum (65%) is 50 50; 100% is 77 77 Physical Characteristics: Bases: N A Bottles: tall Date Codes: none EIA Factory Codes: none Getters: mid bottle, D Flashing Quality: excellent Mica Spacers, Bottom: crenelated,