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Question by Maria: How can crystal radios work if the energy provided by radio waves isnt enough to overcome forward voltage drop?
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If the energy provided from the radio waves in a crystal radio isnt enough to overcome the forward voltage drop of the diode being used, then how can a crystal radio even work?
Energy picked up by crystal radios is in the microwatt and nanowatt range, so how can the crystal radio work if the diode it used needs at least 0.3 volts to work? (Overcome forward voltage drop)
Best answer:
Answer by Mark G
You use a very long antenna (+100 ft) to collect enough radio energy to allow operation.
And close proximity to the radio transmitter
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