Matched Pair RCA 6K7 Vacuum Tubes NOS-Testing Hamlet new in box CBS-Hytron 8CS7

new in box CBS-Hytron 8CS7 tested to spec on our Paul Hart-calibrated TV7/U

Tube One measured 1690 micromhos and drew 19

They measured 100/78 for Tube One and 102/80 for Tube Two

copper support rods and graphite coatings for even electrostatic charge distribution and

Matched Pair RCA 6K7 Vacuum Tubes NOS-Testing Hamlet new in box CBS-Hytron 8CS7This new old stock testing, perfectly matched pair of RCA 6K7 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Both measured 54 were minimum (65%) is 36 and 100% is 55. These tubes have large logos; and Tube One has a TE4 date code. 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