Matched Pair Cunningham 6SJ7 Vacuum Tubes Number Type Shoulder new in box GE 12AX4

new in box GE 12AX4 tubes tested to spec on our Paul Hart-calibrated TV7/U

(New US 6L6GCs typically test with plate current from the low 20s to mid 30s with transconductance from 2200 micromhos or so

This beautiful new old stock

This matched pair of 8FQ7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

This black plate GE 5Y3G rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

Matched Pair Cunningham 6SJ7 Vacuum Tubes Number Type Shoulder new in box GE 12AX4This 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 44 for Tube One and 46 for Tube Two where minimum (65%) is 40 and 100% is 62. They have 9 22 RE5 and 9 22 codes, respectively. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR