Matched Pair Cunningham 6SJ7 Vacuum Tubes Number Type Shoulder THE PRODUCT DEVELOPMENT AND IMPROVEMENT

THE PRODUCT DEVELOPMENT AND IMPROVEMENT CYCLE IS OVER

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

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

steel snubbers for lowered microphonics

One is Wards -branded and the other is Zenith

Matched Pair Cunningham 6SJ7 Vacuum Tubes Number Type Shoulder THE PRODUCT DEVELOPMENT AND IMPROVEMENTThis 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