Westinghouse 5U4 5U4GB Vacuum Tube Rectifier Black Plates International Stereo new in box RCA 7A8

new in box RCA 7A8 tube tested to spec on our Paul Hart-calibrated TV7/U

Tube One measured 33 while Tube Two measured 34 where minimum (65%) is 32 and 100% is 49

This Wards Super Airline 5W4G rectifier tested 46/49 on our Paul Hart-calibrated TV7/U where minimum (65%) is 40/40 and 100% is 62/62

round mica spacers and A1 and R1 date codes

They tested 53

Westinghouse 5U4 5U4GB Vacuum Tube Rectifier Black Plates International Stereo new in box RCA 7A8This Westinghouse 5U4GB rectifier tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas and it measured 58 61 where minimum (65%) is 40 40. It has a top O getter; excellent flashing; black plates; a top crenelated, round mica spacer and a bottom smooth, rectangular mica spacer. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE