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Freeplay Energy Ltd (AIM: FRE), (formerly BayGen Power Industries, Freeplay Energy Group), is a manufacturer and distributor of portable electrical or electronic products such as radios and lights, generally powered by hand cranked generators that charge rechargeable batteries.
Trevor Graham Baylis CBE (13 May 1937 – 5 March 2018) was an English inventor best known for the wind-up radio.The radio, instead of relying on batteries or external electrical source, is powered by the user winding a crank.
The original Baygen clockwork radio with crank in winding position A windup radio or clockwork radio is a radio that is powered by human muscle power rather than batteries or the electrical grid. In the most common arrangement, an internal electric generator is run by a mainspring, which is wound by a hand crank on the case.
One problem with the Baygen clockwork radio is that while the handle is being wound, no power is being generated for the radio. It takes 30 seconds to recharge the spring, which then takes 15 minutes to wind down. The gap is not fatal for music, but would be annoying if the gap occurred during a weather forcast that warns you of a hurricane.
Lifeline Energy (formerly Freeplay Foundation) is a non-profit social enterprise that provides technology solutions [buzzword] for off-grid learning. The organization designs, manufactures and distributes solar and wind-up media players and radios for classroom and group listening and was behind the first solar and wind-up radio for humanitarian use which launched in 2003.
The RCA model R7 Superette superheterodyne table radio. This is a list of notable radios, which encompasses specific models and brands of radio transmitters, receivers and transceivers, both actively manufactured and defunct, including receivers, two-way radios, citizens band radios, shortwave radios, ham radios, scanners, weather radios and airband and marine VHF radios.