Mullard Magic: For All Your Vintage Valve and Radio Needs!
6U8, BRIMAR, ECF82,
ECF82, BRIMAR, 6U8, AUGUST 1965 BRIMSDOWN PRODUCTION
ECF82, BRIMAR, 6U8, NOVEMBER 1956 BRIMSDOWN PRODUCTION
EFC82, MULLARD, FADED YELLOW PRINT, FACTORY CODE, 4X5 L3C1, MBLE BRUXELLES 1963 MANUFACTURE
GB-1252, SYLVANIA, MIL; SPEC 6U8A, ECF82, FADED WHITE PRINT,