Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hand-crank radios work pretty straight forward..they've a dc generator/motor and the shaft when rotated it generates electricity that you need to store temporarily into a small battery bank. Radio gets its power from this battery for some time. There maybe gearboxes attached to the motor shaft.
You need a rechargeable battery pack...can't avoid it
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