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6DA4A Sylvania black base NOS 1970 era (82/60)
6DE4 Sylvania used/like new (1 pair)
6DE4 Tungsol NOS 1960's
6EC4A=EY500 GE JAPAN NOS 1960's (1 pair)
6EH4A NOS (12 in stock)
6V3A NOS
6X4 Allied by Matsushita Japan NOS 1960's (58/40 and 58/40) 1% section balance
6X4 Arcturus by GE NOS "D" getter 1960 (54/40 and 54/40)
6X4 GE Beckman like new "D" getter 1962 (54/40 and 52/40)
6X4 GE like new 1950's "D" getter (54/40 and 54/40)
6X4 IEC Electron Japan used/tests like new 1960's (60/40 and 62/40)
6X4 International by Matsushita Japan NOS 1960's (55/40 and 56/40)
6X4 National Union "D" getter halo tests like new 1955 (56/40 and 58/40)
6X4 National Union used/good 1951 (55/40 and 56/40)
6X4 Philco used/good 1949 (46/40 and 47/40)
6X4 RCA "O" getter used/good 1960's (44/40 and 49/40)
6X4 Sylvania D getter used/tests like new 1958 (58/40 and 60/40)
6X4WA GE black plates rebranded National NOS (55/40 and 56/40)
6X4WA GE used/tests like new 1960 era no printing (54/40 and 54/40)
6X5GT GE used/good 1958 (48/40 and 50/40)
