Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes NOS-Testing 17GW6 Octal T11 These three US-made milspec VR-150

These three US-made milspec VR-150 / VT-139 / 0D3A tubes tested to spec in our Hickok 800

One is an early 1X2

Transconductance measured 8800 micromhos and late current draw was 48

This GE 30MB6 tube tested to spec on our Paul Hart-calibrated TV7/U

One can adjust the time

Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes NOS-Testing 17GW6 Octal T11 These three US-made milspec VR-150This new old stock testing, matched pair of GE 6SJ7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 64 for Tube One and 68 for Tube Two tubes where minimum (65%) is 40. They have NU 188 5 and 3 09 188 5 date provenance codes, respectively. I am playing them as I write in my Musical Paradise MP 301 MK3 and they sound excellent. WE HAVE SCORES OF THOUSANDS OF