Today pocket transistor radios manufactured in the 1950s are very collectable. Some models are highly sought after by collectors and regularly sell for hundreds of dollars. It is not uncommon to find ...

Viscount Suirdale, as he then was, in 1962 with another Perdio product: the Portorama portable television - Evening Standard/Hulton Archive/Getty Images The 8th Earl of Donoughmore, who has died aged ...

If you cultivate an interest in building radios it’s likely that you’ll at some point make a simple receiver. Perhaps a regenerative receiver, or maybe a direct conversion design, it’ll take a couple ...