Sonotone 6N8 EBF80 Vacuum Tube Mesh Plate NOS NIB Amperex 6GB5 Tube One measured 76/76 and

Tube One measured 76/76 and Tube Two measured 79/77 where minimum (65%) is 50/50

but with some wear

This new old stock-testing matched pair of RCA 6CG7 / 6FQ7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

transconductance and gain and on our TV7/U for a more-commonly-used reference

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

Sonotone 6N8 EBF80 Vacuum Tube Mesh Plate NOS NIB Amperex 6GB5 Tube One measured 76/76 andThis West German made Sonotone 6N8 EBF80 mesh plate tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It has beautiful silkscreening and flashing; a mesh plate; and a top, O getter. 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