Matched Pair Philco Number Type 78 #78 Vacuum Tubes Valves Engraved Hot-Stamped Base Mesh Plate Reubke Pierne new in box RCA 6CK3

new in box RCA 6CK3 / 6CL3 tubes tested to spec on our Paul Hart-calibrated TV7/U

they were forwarded to West Germany

035 and 226 date codes

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

This lot of two RCA 25Z5 tubes were tested on our Paul Hart-calibrated TV7/U for emissions

Matched Pair Philco Number Type 78 #78 Vacuum Tubes Valves Engraved Hot-Stamped Base Mesh Plate Reubke Pierne new in box RCA 6CK3This matched pair of mesh plate Philco number 78 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 45 and 48 where minimum is (65%) is 36 and 100% is 55. 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