(!!) EF80=6BX6 Mullard UK "D" getter NOS 1963 faded Mullard logo (10.6ma)
(!!) EF80=6BX6 RTC by EI Yugoslavia NOS 1976 (14ma)
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)