Super Silvertone 5Y3 5Y3G Vacuum Tube Rectifier Black Plate ST Shoulder Shape 6SJ7 NOS-Testing Tubes Three and Four measured

Tubes Three and Four measured 73/70 and 75/72

72 and 76 where minimum (65%) is 45

new in box RCA 6EH5 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box RCA 6AB5 / 6N5 magic eye indicator tube is nice and bright

new in box matched pair of GE 12SL7 / 12SL7GT dual triodes was tested on our Pau Hart-calibrated TV7/U for shorts

Super Silvertone 5Y3 5Y3G Vacuum Tube Rectifier Black Plate ST Shoulder Shape 6SJ7 NOS-Testing Tubes Three and Four measuredThis black plate Super Silvertone 5Y3G rectifier tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 57 60 where minimum (65%) is 40 40 and 100% is 62 62. It has a nifty, old fashioned Coke bottle; a D getter, good flashing for its type and a 41X date code. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE