6GV8=ECL85 RCA Holland NOS 1961 (4.7ma and 46ma)
6GV8=ECL85 Valvo Italy NOS 1961 (1 in stock)
6LF6 Amperex Heerlen Holland Big Bottle NOS 1967 (122ma and 125ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
7788=E810F Amperex PQ USA NOS 1969-1970 (33ma)
7788=E810F Amperex PQ USA NOS 1983 (62ma) (strong Ma and Gm)
E80F=6084 Philips Holland NOS 1975 (3.2ma)
E80F=6084 Philips Miniwatt Holland NOS 1965 (3.0ma)
E80F=6084 Philips SQ Special Quality Holland Gold Pins NOS 1968 and 1973 (2.9ma/3.0ma) 1-3% matched
E83F=6689 Amperex Holland NOS gold pins 1962 (9.2ma)
E83F=6689 Philips Miniwatt SQ Holland NOS 1964 (10.5ma)
E83F=6689 Siemens Holland NOS 1963 (10.6ma)
E83F=6689 Siemens made in Holland NOS 1966 (8.5ma)
ECC88=6DJ8 Siemens Germany Tektronix checked small "o" getter halo 1971 used/good (12.5/16.2ma)
EF80 Lorenz made in Philips Italy NOS 1967 (7ma)
EF80 Siemens Germany 1964 rebranded IEC Mullard 1966 NOS (6.7ma)
EF80 Valvo made in Philips Italy NOS 1969 (8.5ma)
EF80=6BX6 Sylvania Made in England unknown maker NOS 1970's (19.5ma)
EL34 GE Holland brown base used/55% 1961 (51ma)
EL34 Holland brown base used/good faded top getter 1961 (78ma)
EL34 Philips Miniwatt Holland brown base used/good double "D" getters 1959 (70ma)