Matched Pair Ken-Rad 6SJ7 Vacuum Tubes NOS-Testing Camden Classics new in box GE 12L6GT

new in box GE 12L6GT tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box Philco 35Z3 tubes tested to spec on our Paul Hart-calibrated TV7/U

It measured 60/57 where minimum (65%) is 40/40 and 100% is 62/62

These ten new old stock

Both tubes measured 25 where minimum (65%) is 22

Matched Pair Ken-Rad 6SJ7 Vacuum Tubes NOS-Testing Camden Classics new in box GE 12L6GTThis new old stock testing, almost perfectly matched pair of Ken Rad 6SJ7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 56 for Tube One and 57 for Tube Two where minimum (65%) is 40. They have G 3R and W 4R date codes, respectively. I am playing them in my Musical Paradise MP 301 MK3 as I write and they sound excellent. They are microphonic and are fine in the