(!!!) (#1 7308 Telefunken Pair) 7308=E188CC Telefunken Germany <> bottom gold pins NOS 1965 (high Ma and Gm) (very low noise)
(!!!) (#2 7308 Telefunken Pair) 7308=E188CC Telefunken Germany <> bottom gold pins NOS 1961 and 1969
(!!) (#1 7308 MULLARD PAIR) E188CC=7308 Philips SQ by Mullard NOS 1970 1-2% matched (matched on Amplitrex)
(!!) (#1 7308 SYLVANIA PAIR) 7308 Sylvania JAN NOS 1969 in white boxes (matched on Amplitrex)
(!!) (#2 7308 from 1960) 7308=E188CC Amperex PQ USA Gold Pins with curved "D" getter halo used/good 1960 (11.6ma/12.8ma)
(!!) 7308 Amperex PQ USA NOS 1964 (18/22ma) (High Ma and Gm)
(!) (#1 7308 - BEST SINGLE) E188CC=7308 Philips Miniwatt SQ Holland NOS 1963 (14.6/17.8ma)
(!) (#1 7308 Siemens Single) E188CC=7308 Siemens Germany "Silver shield" NOS 1975 (13.5/13.6ma) 1% section balance
(!) (#1 BEST 7308 USA SINGLE) 7308 Amperex Globe Logo USA NOS 1964 (16.4/16.0ma)
(!) (#1B 7308 SINGLE) E188CC=7308 Philips SQ Holland NOS 1972 (11/13.8ma)
(!) (#2 Best 7308 Siemens) E188CC=7308 Siemens Halske NOS 1972 (12.4/16.4ma)
(!) (#2 Best 7308 USA) JAN-7308 Amperex USA NOS Gold Pins 1972 in original box (14.4/14.8ma)
(!) (#3 BEST 7308 SINGLE) E188CC=7308 Holland NOS 1966 rebranded IEC MULLARD (11.6/13ma)
(!) (#4 BEST 7308 SINGLE) E188CC=7308 Valvo Holland NOS 1972 (10.6/12.4ma)
(!) 7308 Amperex Globe Logo USA NOS 1965 (12/15ma)
(!) 7308 Miniwatt Holland NOS 1966 (14.2/15.6ma) (strong Ma and Gm)
(!) JAN-7308 Amperex USA NOS 1971 (11.4/12.4ma) close triode balance
(!) JAN-7308 Amperex USA NOS 1971 (12.6/13.4ma) close triode balance
7308 Amperex PQ USA "D" getter used/70% 1960 (VR0 series=1st series) (9.2/9.5ma)
