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3S4 Tungsol NOS 1944 (101/60)
3S4 Tungsol NOS 1948 (102/60)
4-250A=5D22 RCA 1962 used original box sold as-is 1962 (good filament)
407A Sylvania branded RCA gold pins used/good 1971
407A Sylvania gold pins used/good 1960's
40KG6A=PL519 JAPAN branded RCA tall bottle clear top NOS (1 in stock)
42 National Union like new 1950 era (29.5ma) (Gm like new)
42 Philco engraved base used/very good 1930's (32.5ma)
42 Philco used/good 1940's (30.8ma)
42 RCA used/good 1940's (27.2ma)
42 Sylvania engraved used good 1940's (30ma)
42 Tungsol used/good 1940's (27ma)
42 Tungsol used/good 1940's (30ma)
42 Tungsol used/good 1940's faded printing (33ma)
46 Ken Rad branded Coronado used/tests like new 1940's (52.5ma Gm=2700)
46=VT-63 Ken Rad low hours/tests like new 1940's (57.2ma Gm=2660)
46=VT-63 Tungsol NOS 1940's (56.5ma Gm=3100)
47 RCA used/good 1940's rebranded Silvertone (30ma Gm=2150)
50L6GT Ken Rad used/good 1947 (76/60)
50L6GT RCA like new 1940's reboxed slightly tilted glass (98/60)
