Matched Pair General Electric GE 12SN7 12SN7GTA Vacuum Tubes Copper Support Rods NOS-Testing 6BH11 NOS NIB 68 and 68 where minimum

68 and 68 where minimum (65%) is 45

Tube Five (triode): 46

These ten new old stock

new in box Japanese-made 26LX6 tube tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair General Electric GE 12SN7 12SN7GTA Vacuum Tubes Copper Support Rods NOS-Testing 6BH11 NOS NIB 68 and 68 where minimumThis new old stock testing matched pair of General Electric GE 12SN7 12SN7GTA 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 82 82 and Tube Two measured 85 84 where minimum (65%) is 50 50. Both tubes have gray, ladder plates; side horseshoe getters; crenelated, gapped, top mica spacers with smooth sided rectangular bottom mica spacers; copper support rods