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76 Croydon by Sylvania engraved base used 1930's (4.5ma) (Gm is 60%)
76 Delco by RCA 1940's used/good (4.1ma)
JAN-CHS-1625 Sylvania NOS 1943-1944 (1 in stock)
JAN-CHY-1626 Hytron NOS 1940's (38ma)
UX-201-A Radiotron used/good 1930 era (2.4ma Gm=550)
UX-201-A RCA Radiotron Balloon tests like new 1930's (read review)
