Sylvania 5Y3 5Y3G Vacuum Tube Rectifier Black Plate ST Shoulder Shape AL9599 ALB6-8290 This Raytheon 0Z4 regulator tube

This Raytheon 0Z4 regulator tube tested to spec in our Paul Hart-calibrated TV7/U tube tester

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

new in box milspec National Union JAN-CNU 2X2A VT-119 879 tube tested to spec on our Paul Hart-calibrated TV7/U

IN OVER OVER 7000 SALES

Tube Five has been repaired

Sylvania 5Y3 5Y3G Vacuum Tube Rectifier Black Plate ST Shoulder Shape AL9599 ALB6-8290 This Raytheon 0Z4 regulator tubeThis black plate Sylvania MANUFACTURED, Philco LABELED 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 50 53 where minimum (65%) is 40 40 and 100% is 62 62. It has a nifty, old fashioned Coke bottle; a dimple sheet getter, outstanding flashing and a P1 date code. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO