General Electric GE Black Plate 5U4 5U4G Vacuum Tube Rectifier Shoulder ST Shape Atmospheric Horel 60/40 and 64/50 where minimum

60/40 and 64/50 where minimum (65%) is 50/50 and 100% is 77/77

One is milspec

This milspec RCA 843 / USN-CRC-843 tube was tested our Paul Hart-calibrated TV7/U for shorts

low-noise E88CC / CV2492 / 6DJ8 / ECC88 OTK dual triode was tested on our Paul Hart-modified TV7/U for shorts

medium bottles and excellent flashing

General Electric GE Black Plate 5U4 5U4G Vacuum Tube Rectifier Shoulder ST Shape Atmospheric Horel 60/40 and 64/50 where minimumThis GE MANUFACTURED, Sentinel BRANDED 5U4G rectifier tube tested a perfectly balanced 57 in both sections on our Paul Hart calibrated TV7 U where minimum (65%) is 40 40 and 100% is 62 62. It has a top D getter; 5 35 188 20 date provenance codes 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 NOT SEE