Matched Pair RCA 6K7 Vacuum Tubes NOS-Testing Hamlet 42 and 45 where minimum

42 and 45 where minimum (65%) is 30

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

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

Tube One measured 1690 micromhos and drew 19

nickel plates and excellent flashing

Matched Pair RCA 6K7 Vacuum Tubes NOS-Testing Hamlet 42 and 45 where minimumThis 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