Crank Radio Electronics

People often see a crank radio as something magical, and wonder how it works, however, it is simply a radio with a built-in dynamo generator. With advancements in semiconductor technology, it became possible to make integrated circuits that require extremely small amounts of power to operate; hence, this was a very logical development.

With the development of high-brightness LED technology, many crank radios also have a flashlight function for emergency purposes.

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