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6S4A Sylvania triple mica NOS 1960's (20.2ma)
6S4A Tungsol branded GE NOS 1966 (21.5ma)
6S4A Westinghouse NOS 1963 (23ma)
6SN7GTB RCA used good 1960's (6.4/8.2ma)
6T9 GE branded RCA NOS original boxes (2 in stock)
6T9 GE branded RCA NOS original boxes (3 in stock)
6T9 GE NOS 1960's
6X4 RCA "O" getter used/good 1960's (44/40 and 49/40)
6X5GT RCA branded Raytheon NOS 1950's (51/40 and 52/40)
6X5GT Sylvania chrome top NOS 1958 (51/40 and 52/40)
7199 RCA Black Plates NOS 1963 (10.4/7.6ma)
7581 Tungsol brown base used/75% 1964 (52.5ma)
7581A GE branded RCA used/good 1973 (56ma)
7581A GE used/good 1974 (59ma)
7729=12AX7 Raytheon Uniline Gold Pins (sold out)
8417 Westinghouse "tan base" NOS 1964 triple getter (108ma) (rare)
8417 Westinghouse "tan base" used/good 1960's (71ma)
8417 Westinghouse Bogen "tan base" used/good 1964 (127ma)
8417 Westinghouse Bogen "tan base" used/tests like new 1964 (102.6ma)
8417 Westinghouse engineering sample NOS 1960's (94.5ma)