(!!!) (Best Single) 6922 Amperex PQ USA 1967 NOS (13.6ma/16.8ma)
(!!!) (Single) 6688=E180F Amperex PQ USA NOS "O" getter 1968 (9ma)
(!!) 7788 Amperex PQ USA NOS gold pins 1973 (38.8ma)
(slightly microphonic) 6922 Amperex PQ Holland 1962 low hours/like new (11.2/11.6ma)
7788=E810F Amperex PQ USA NOS 1969-1970 (33ma)
7788=E810F Amperex PQ USA NOS 1983 (62ma) (strong Ma and Gm)
JAN-7788 Amperex USA NOS 1986 (54ma)