RCA Cunningham Radiotron Number Type 80 Vacuum Tube Rectifier Black Plates Engraved Base Shoulder ST Shape Hanging Filaments Harcourt Brace It measured an almost-perfectly-balanced 59/57

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

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

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

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

" "The Steppe Lies Long Beyond The Volga

RCA Cunningham Radiotron Number Type 80 Vacuum Tube Rectifier Black Plates Engraved Base Shoulder ST Shape Hanging Filaments Harcourt Brace It measured an almost-perfectly-balanced 59/57This 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