Showing posts with label diagrams. Show all posts
Showing posts with label diagrams. Show all posts
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Crystal radio
Most electronics enthusiasts started with this diagram.
Crystal radios are the simplest type of radio receiver and can be made with a few inexpensive parts, such as a wire for an antenna, a coil of wire, a capacitor, a crystal detector and earphones (>2000 ohms).
Crystal radio made by Radiola (1922)
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