Both models became iconic products , revered by enthusiasts to the present day .
Both models were used by the BBC and in commercial radio stations , mostly in Europe ; the 301 and to a lesser extent the 401 were also exported around the world .
Both models became iconic products , revered by enthusiasts to the present day , and were used by the BBC and in commercial radio stations , mostly in Europe ; the 301 and to a lesser extent the 401 were also exported around the world .