Matched Pair Ken-Rad 6SJ7 Vacuum Tubes NOS-Testing Virginia Etsy will tell you how

Etsy will tell you how many remain

new in box (for Tube One) matched pair of RCA 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U tester for shorts

new in box RCA 5AM8 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box Miller 12-H6 KC output transformer with diode filter is sold as-is as I have no means of testing this output transformer

balanced sections

Matched Pair Ken-Rad 6SJ7 Vacuum Tubes NOS-Testing Virginia Etsy will tell you howThis new old stock testing, nicely matched pair of Ken Rad 6SJ7s was tested on our Paul Hart calibrated TV7 for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 58 for Tube One and 60 for Tube Two where minimum (65%) is 40. They have G 5R and G SR date codes, respectively. I am playing them as I write in my Musical Paradise MP 301 MK3 and they sound excellent. They are microphonic and are fine in the preamp