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7B7 Tungsol NOS 1949
7C5 Philco Sylvania used 1940's (46.6ma)
7C5 Sylvania branded GE used 1951 (47ma)
7C6 GE used/like new 1949 in white box (95/60)
7C6 RCA NOS 1940's tarnished base (96/60)
7C6 RCA Victor like new 1948-1950 (23/15)
7C6 Sylvania branded CBS Hytron NOS 1952 (23/15)
7C6 Sylvania branded Raytheon NOS 1950's (1 in stock)
7C6 Sylvania branded RCA used/like new 1956 (98/60)
7X7=XXFM Sylvania branded Emerson NOS 1949 (97/60)
84=6Z4 GE NOS 1950 (51/40 and 52/40)
84=6Z4 RCA NOS GT-shape glass slightly tilted glass 1967 (44/40 and 47/40)
84=6Z4 RCA NOS GT-shape glass tilted glass 1967 (47/40 and 48/40)
99=X-199 Silvertone NOS 1934 (2.5ma, Gm=500) (strong single)
99=X-99 RCA Radiotron NOS 1930's in sealed box (2.2ma)
CX-299=99 Cunningham NOS 1930 era (2.1ma)
JAN-CHS-7A8 Sylvania tests like new 1940's (88/60)
UX-199=199 RCA Radiotron NOS 1930 era (1.7ma)
