Delco Number Type 80 Vacuum Tube Rectifier Black Plates Engraved Base Shoulder ST Shape 4th Quarter BW42 Transconductance measured micromhos with a

Transconductance measured micromhos with a plate current draw of milliamps

I cannot guarantee that the copper-colored finish is rose gold

This matched pair of Sylvania gray glass 7C5 tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volt for shorts

EIA Factory Codes: RCA livery

new in box RCA 13GF7 13GF7A tubes tested to spec on our Paul Hart-calibrated TV7/U

Delco Number Type 80 Vacuum Tube Rectifier Black Plates Engraved Base Shoulder ST Shape 4th Quarter BW42 Transconductance measured micromhos with aThis Delco type 80 rectifier tube was tested on our Paul Hart calibrated TV7 U. It measured 55 51 where minimum (65%) is 40 40 and 100% is 62 62. It has a dimpled sheet getter; wire snubbers; a silkscreened base 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 "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY