Westinghouse 5U4 5U4GB Vacuum Tube Black Plate 1G3 Plate Cap It measured 53/47 where minimum

It measured 53/47 where minimum (65%) is 40/40 and 100% is 62/62

32 and 52 where minimum (65%) is 36 and 100% is 55

This Sylvania 6BQ5 / EL84 output tube was tested on our Maxi-Matcher 2 with 325 volts on the plates and a bias of -14 volts for shorts

wire snubbers

I have played it in one of my ArtSound 805 monoblocks and it sounds excellent

Westinghouse 5U4 5U4GB Vacuum Tube Black Plate 1G3 Plate Cap It measured 53/47 where minimumThis Westinghouse 5U4GB black plate rectifier tube tested 54 54 on our Paul Hart calibrated TV7 U where minimum (65%) is 40 40 . It has a top, side D getter; black plates; a top crenelated mica spacer and a smooth bottom spacer 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 WHAT YOU NEED OR