Sylvania 5Y3 5Y3G Vacuum Tube Rectifier Black Plate ST Shoulder Shape 5E514 5E-514 I have played it in

I have played it in my Alan Eaton single-ended 45 amplifier with an adapter and it sounds outstanding

This matched pair of RCA black plate 5763 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

please see Picture Four

Tube One (centering pin missing) measured 46/46 while Tube Two measured 50/46 where minimum (65%) is 25/25 and 100% is 39/39

These five Ken-Rad-MANUFACTURED 6U7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

Sylvania 5Y3 5Y3G Vacuum Tube Rectifier Black Plate ST Shoulder Shape 5E514 5E-514 I have played it inThis black plate Sylvania 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 53 58 where minimum (65%) is 40 40 and 100% is 62 62. It has a nifty, old fashioned Coke bottle; a D getter, outstanding flashing; a wire snubber for increased rigidity and an MR Z5R date code. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE