Sylvania 5U4 5U4G Vacuum Tube Rectifier Black Plate Shoulder ST Variety Projection Lamp This lot of four RCA

This lot of four RCA 50Y6 tubes tested to spec on our Paul Hart-calibrated TV7/U

outstanding flashing and a 43-C2 date code

It measured 51/56 where minimum (65%) is 50/50 and 100% is 77/77

This lot of twelve new old stock

WE HAVE SCORES OF THOUSANDS OF VINTAGE ELECTRONIC ITEMS

Sylvania 5U4 5U4G Vacuum Tube Rectifier Black Plate Shoulder ST Variety Projection Lamp This lot of four RCAThis Sylvania 5U4G rectifier tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. It measured 57 58 where minimum (65%) is 40 40 and 100% is 62 62. This tube has 352 C date codes, a bottom, D getter and nice flashing. There are a few glass fragments inside the bottle. Fortunately they are inert and don't affect the tubes's operation. Please see picture. WE HAVE SCORES OF THOUSANDS OF VACUUM