(!!!) (slightly microphonic) 6922=E88CC Tesla Czech Republic NOS 1970 (15.0/16.8ma)
(!!!) (~ Good Value Pair ~) 6DJ8 Russian USSR branded Amperex NOS 1982 (14.0/15.2ma and 16.0/16.4ma)
(!!!) (~ Good Value Pair ~) 6DJ8 Russian USSR branded United and International NOS 1977-1980 (14.0/15.2ma and 16.0/16.4ma) (Highest ma and Gm)
(!!!) (~ Good Value Pair ~) 6DJ8 Russian USSR branded United and International NOS 1977-1980 (15.4/15.8ma and 14.4/16.0ma) (Highest ma and Gm)
(!!) (Recommended Pair) 6DJ8 GE NOS 1974-1980 (13.5/14.2ma and 12.4/13.5ma)
(!!) 5751 Sylvania misbranded 12AX7WA NOS 1960's (1.9/1.9ma)
(!!) 5751W1 Sylvania triple mica "O" getter halo used/good early 1960's misbranded 12AX7WA (1.8/2.0ma)
(!!) 7062=E180CC Amperex USA NOS 1980-1981 (5/6ma)
6528A Cetron like new 1989 (102/110mA)
6528A Cetron low hours/like new 1980 (97/134mA)
6528A Cetron low hours/like new 1989 (100/122mA)
6528A Cetron NOS 1989 (100/135mA)
6528A Cetron tests like new 1979 broken guide pin (111/124mA)
6528A Cetron used/good 1979 broken guide pin (99/117mA)
6528A Cetron used/good 1987 (104/106.5mA)
6528A Cetron used/good 1987 (112/113mA)
6528A Cetron used/good 1989 slightly tilted glass (94/127mA)
6DJ8 GE NOS 1976 (25/27.8ma)
EF86 International Russian NOS 1979 (3.7ma)
EF86 Trigon made in Russia NOS 1970's (2.7ma)