Matched Pair Cunningham 6SJ7 Vacuum Tubes Number Type Shoulder

Matched Pair Cunningham 6SJ7 Vacuum Tubes Number Type ShoulderThis 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

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

steel snubbers for lowered microphonics

One is Wards -branded and the other is Zenith

new in box GE 6BW11 tubes tested to spec on our Paul Hart-calibrated TV7/U

THE PRODUCT DEVELOPMENT AND IMPROVEMENT CYCLE IS OVER

IF Amplifier 12BA6

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

Tube one measured 30 in its triode section where minimum (65%) is 25 and 100% is 38

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

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

Two end links are available

This beautiful new old stock