Mullard Magic: For All Your Vintage Valve and Radio Needs!
EL84, MULLARD, NEW SHIELD, KM1 B4L2, BLACKBURN NOVEMBER 1974 PRODUCTION
EL84, MULLARD, NEW SHIELD, KM1 B5G1, BLACKBURN JULY 1975 PRODUCTION
EL84, MULLARD, NEW SHIELD, KM1, B1D1 BLACKBURN APRIL 1971 PRODUCTION
EL84, MULLARD, OLD SHIELD, KM1 B9K1, BLACKBURN DECEMBER 1969 PRODUCTION
EL84, MULLARD, OLD SHIELD, rX1 BA5, BLACKBURN JANUARY 1955 PRODUCTION