RCA Cunningham Radiotron Number Type 80 Vacuum Tube Rectifier Black Plates Engraved Base Shoulder ST Shape Hanging Filaments Harcourt Brace new in box CBS-Hytron 12BZ7

new in box CBS-Hytron 12BZ7 tube tested to spec on our TV7/U

new in box RCA 6KD6 tube -- and two just like it -- tested to spec on our Paul Hart-calibrated TV7/U

new in box RCA 6E5 magic eye indicator tube is nice and bright

5 record cleaner and then played it on my Rega Planar Threes

It measured an almost-perfectly-balanced 59/57 where minimum (65%) is 40/40 and 100% is 62/62

RCA Cunningham Radiotron Number Type 80 Vacuum Tube Rectifier Black Plates Engraved Base Shoulder ST Shape Hanging Filaments Harcourt Brace new in box CBS-Hytron 12BZ7This RCA Cunningham Radiotron number type 80 rectifier tube was tested on our Paul Hart calibrated TV7 U. It measured 47 44 where minimum (65%) is 40 40 and 100% is 62 62. It teats below spec but should work fine in many applications. It has a dimpled sheet getter; an engraved base; hanging filaments and outstanding 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