Matched Pair Cunningham 6SJ7 Vacuum Tubes Tung-Sol NOS NIB I have played it in

I have played it in my Alan Eaton single-ended 45 amplifier (with adapters

8 milliamps while transconductance measured 2440 micromhos

Minimum (65%) is 57/57

They measured 59

Matched Pair Cunningham 6SJ7 Vacuum Tubes Tung-Sol NOS NIB I have played it inThis matched pair of Cunningham 6SJ7 tubes was tested on our on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 48 for Tube One and 50 for Tube Two where minimum (65%) is 40 and 100% is 62. They have Y5E and 9 22 codes, respectively. I am playing them as I write in my Musical Paradise MP 301 MK3 and they sound excellent. They are not suitable for guitar amp application as they