Westinghouse 5U4 5U4GB Vacuum Tube Black Plate 1G3 Plate Cap These tubes have black plates

These tubes have black plates

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

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

new in box Super Silvertone 35Z4GT tube tested to spec on our Paul Hart-calibrated TV7/U

Westinghouse 5U4 5U4GB Vacuum Tube Black Plate 1G3 Plate Cap These tubes have black platesThis 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