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Technical Trivia by Dr. FB / Why we don't use a silicon diode in a crystal radio?|Jul.2020 - Monthly FB NEWS
Make a razor blade diode
How to Make / Build a Crystal Radio
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Crystal Radio Circuits
Crystal Radio Set ~ Germanium Diode
Crystal radio - Simple English Wikipedia, the free encyclopedia
Crystal Radio Circuits
Simple Crystal Radio driving an 8 inch speaker
File:Simplest crystal radio circuit.svg - Wikimedia Commons
Crystal Radio Circuits
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Germanium Point Contact Diode | Radio, Ham radio, Led projects
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High-Power Crystal Radio
Antique-style crystal radio kit, a sample of the element Germanium in the Periodic Table