Tested Strong Matched Pair of Ken Rad 6SK7 VT-117 Tubes.
Date Codes L3.
Tubes are matched for mutual conductance (Gm), date codes and structure - they are identical.
Both tubes test as NOS.
Tested on a calibrated Hickok TV-10 military tube tester and exhibiting no shorts or leaks with the following results:
Gm Test = 2500 and 2500 micromhos
Minimum pass/good = 1260
NOS rating = 1890
~ Please view all 3 photos ~
