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623 National USA rectifier NOS (check back soon)
6240G Luxman by NEC Japan NOS 1960's (6.3/7.4ma)
6240G Luxman by NEC Japan NOS 1960's (6.7/8.0ma)
6252=AX9910
6263 Power Pencil Transmitting Triode NOS
6286 Raytheon NOS 1959-1961
6299 NOS
6336A GE used/good 1960 era (74/79ma)
6336A RCA branded GE like new 1966 (88ma/110ma) ***
6336A RCA branded GE used/good 1960 (61/79ma)
6336A RCA NOS 1971 (55/70ma)
6336A RCA used/good 1968 (81/120ma) ***
6336A Tungsol used 1963 (52/56ma) ***
6336A Westinghouse used/good 1968 (62.5ma/76ma)
6336B Cetron USA used/good 1981 (74ma/92ma) ***
6350 GE 5-Star like new "O" getter 1962-1963 era (9.6/9.8ma)
6350 GE 5-Star NOS 1963 (13.2/12ma)
6350 Sylvania black plates "U" getter halo used/good 1956, faded printing (8.2/8.8ma)
6350 Sylvania black plates NOS, "U" getter halo 1956, faded printing (11.5/14.5ma)
6350 Sylvania made for IBM black plates "U" getter halo tests like new 1959, faded printing (11.8/12.2ma)
