Matched Pair RCA 6SN7 6SN7GTB Vacuum Tubes Copper Support Rods Large D Getters Type Rectifier 35 and 47 where minimum

35 and 47 where minimum (65%) is 25

new in box Westinghouse 7A8 tubes tested to spec on our Paul Hart-calibrated TV7/U

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

These four Sylvania 12SG7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

This matched trio of RCA 6BY5GA tubes were tested on our Paul Hart-calibrated TV7/U for shorts

Matched Pair RCA 6SN7 6SN7GTB Vacuum Tubes Copper Support Rods Large D Getters Type Rectifier 35 and 47 where minimumThis matched pair of RCA 6SN7GTB 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: 66 63 Tube Two: 68 66 Bogey: Minimum (65%) is 50 50; 100% is 77 77 Physical Characteristics: Bases: tall Bottles: medium height Date Codes: 4 09 and 2 04 EIA Factory Codes: RCA logos Getters: bottom, Large D Flashing Quality: N A Mica Spacers,