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101D Western Electric Tennis Ball 1920's test like new (7.8ma and 8.4ma) (sold out)
101FA ST-shape Western Electric NOS 1962 and 1972
1.3.25 101L Western Electric NOS 1961 (5.3ma Gm=1000)
101L Western Electric top printing 1940-1945 used/good (4.1ma Gm=800)
102F WE Tennis Ball display tube - does not work
10C8
10DE7 US Brands NOS (6 in stock)
10DR7 US Brands NOS
10EM7 RCA branded GE faded printing NOS (2.5/32ma)
10EM7 RCA branded GE NOS (3.0/43ma)
10EM7 Sylvania branded GE NOS (1.8/61ma)
10GF7 Sylvania NOS (2 in stock)
10GN8 Mixed Brands NOS (25 in stock)
10GV8=LCL85 Hitachi RCA Japan NOS (2 in stock)
(!!) (Recommended Pair) 6CS7 GE Canada NOS black plates 1965-1969 (18/11.2ma and 20/9.6ma) (close Gm)
(!) (SINGLE) 6SN7GT Westinghouse USA black plates NOS 1950 era (6.4/6.8ma)
(!) 6AN8A Tungsol rebranded Dumont NOS 1960's (14.5/14.8ma)
1A4P=1A4G RCA Victor NOS 1940's
(!) (SINGLE) 6BZ7=6BQ7A GE GM Delco "U" getter NOS 1950's (11.6/10ma)
6F8G GE parallel plates NOS 1940's (8.0ma and 8.4ma)