Quote:
Originally Posted by theducks
1950's newspaper funnies had Dick Tracy with a wrist radio, later in that decade, upgraded with Video.
No excuse for being that far behind in the tech UNLESS EXPLAINED
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A radio (with batteries and headphones) that fitted in a hat was real 1930s product.
The first pocket radios used hearing and military valves (tubes) in 1950s. The first transistor one was in the USA (Regency TR-1) 1954. Sony renamed themselves Sony (from So New York!) for the TR-63 in 1957 which was the first successful pocket transistor radio.
The first matchbox sized radios would have been toy crystal radios needing a long aerial in 1950s. Sinclair didn't do the first matchbox sized AM transistor set, but it's the best known 1967.
See
www.Radiomuseum.org
AM Watch Radios never worked well. Too poor reception. FM models using an IC in the 1980s used the earphone flex as an aerial as do phones with FM radio today, but battery life is poor. Some iPhones have an FM radio as it's included in the BT&WiFi chip, but due to ditching the 3.5mm jack purely for cosmetic reasons the radio is disabled as it has no aerial.