Matched Pair Sylvania 6SJ7 6J8P Vacuum Tubes Valves NOS-Testing Atmospheric Horel Tube One measured 40/44 while

Tube One measured 40/44 while Tube Two measured 42/46 where minimum (65%) is 25/25 and 100% is 38

74/37 and 76/54 where minimum (65%) is 50/40

This antenna is new in box

new in box Philco 6BS8 tubes tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair Sylvania 6SJ7 6J8P Vacuum Tubes Valves NOS-Testing Atmospheric Horel Tube One measured 40/44 whileThis new old stock TESTING matched pair of Sylvania 6SJ7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 57 for Tube One and 58 for Tube Two where minimum (65%) is 40. They have HG YCN and EJ date codes, respectively. I am playing them as I write in my Musical Paradise MP 301 MK3 and they sound excellent. Tube Two is a bit microphonic and it is therefore