am radio wave
 

when trying to demodulate a radio wave with am can you after a
diode leave out a capacitor and let the high frequency part and
low frequency part go to a microphone - it could be true a
microphone will not see the high frequency part

thank you for any answers

Kurt Stocklmeir
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am radio wave
 

On Sat, 27 Feb 2016 20:19:34 +0000, kurt stocklmeir wrote:

when trying to demodulate a radio wave with am can you after a diode
leave out a capacitor and let the high frequency part and low frequency
part go to a microphone - it could be true a microphone will not see the
high frequency part

thank you for any answers

Kurt Stocklmeir

Why would you want to send it to a microphone? An earphone would work
better. There are crystal radio designs both with and without the
capacitor. Those with the capacitor give more volume. Those without are
more selective.

If you're not talking about a crystal radio, the reason for the capacitor
is to filter out the RF which can be stronger than the audio and overload
the amplifier.

--
Jim Mueller

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