Sylvania 5U4 5U4G Vacuum Tube Rectifier Black Plate Shoulder ST Variety Sylvania Octal excellent flashing and copper support

excellent flashing and copper support rods

This matched pair of Sylvania-MANUFACTURED 6K6GT tubes was tested on our Maxi-Matcher 400 volts on the plates and a bias of -36 volts for shorts

This hardcover book is in good condition

This Swiss-made Mimo men's watch may look rather small

but I do not recommend using them at any other filament voltage than 12

Sylvania 5U4 5U4G Vacuum Tube Rectifier Black Plate Shoulder ST Variety Sylvania Octal excellent flashing and copper supportThis 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 52 54 where minimum (65%) is 40 40 and 100% is 62 62. This tube has 139 date codes, a bottom, D getter and nice flashing. 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 CALL OR TEXT US AT 202 372 6931 IF YOU DO