Mullard Magic: For All Your Vintage Valve and Radio Needs!
GZ34, Mullard, f32 B7E2, Blackburn May 1967 manufacture
GZ34, Mullard, f32 B9L3, Blackburn 1969 manufacture
GZ34, Mullard, Yellow Print, f32 B5C3, Blackburn 1965 manufacture, in Red Mullard Box