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

Plates: gray ladder plate

There were some pops and ticks

I am playing them as I write in my Alan Eaton single-ended 45 amplifier with RCA Living Stereo's CD of Bartok's "Concerto For Orchestra

" "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 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