Matched Pair General Electric GE 6SN7 6SN7GTA Vacuum Tubes Copper Support Rods NOS NIB Et Volodia Poliakof Transconductance readings are 44

Transconductance readings are 44

I am playing them in my Mini 2013 as I write and they sound excellent

winged plates with one rectangular hole per plate

These four Sylvania 5Z4 rectifier tubes were tested on our Paul Hart-calibrated TV7/U for shorts

42 and 44 where minimum (65%) is 25 and 100% is 38

Matched Pair General Electric GE 6SN7 6SN7GTA Vacuum Tubes Copper Support Rods NOS NIB Et Volodia Poliakof Transconductance readings are 44This new old stock, new in box (for Tube Two) matched pair of GE MANUFACTURED 6SN7GTA dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 77 80 for Tube One and 82 81 for Tube Two where minimum (65%) is 50 50. They have tall bases; side horseshoe getters; ; copper support rods; outstanding flashing and both have 4 43 188 5 date provenance code. WE HAVE