Matched Pair General Electric GE 6SN7 6SN7GTB Vacuum Tubes Copper Support Rods Milspec Large Logo This perfectly-matched pair of GE

This perfectly-matched pair of GE 25L6GT tubes were tested on our Paul Hart-calibrated TV7/U for shorts

Transconductance measured 44 and 46 where minimum (65%) is 30 and 100% 46

EIA Factory Codes: GE etched dots and 188-5 for Tube Two

mesh plate tubes tested 31 and 36 on our Paul Hart-calibrated TV7/U where minimum (65%) is 25 and 100% is 38

Matched Pair General Electric GE 6SN7 6SN7GTB Vacuum Tubes Copper Support Rods Milspec Large Logo This perfectly-matched pair of GEThis matched pair of GE 6SN7GTB dual triodes was tested on our Paul Hart calibrated TV7 for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 56 55 for Tube One and 61 56 for Tube Two. (Minimum (65%) is 50 50.) They have horseshoe getters; copper support rods; great flashing and 56 39 188 20 and 56 09 188 20 date factory codes. I have played them in my Radio Craftsmen RC 2 monoblocks and they sound great. They