Crystal radio from ignition coil.

alec_t

Well-Known Member

Most Helpful Member

• Jan 19, 2025

• #2

There's no audio. Your speaker won't do a lot with a 680kHz drive.

 

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Lightium

Active Member

• Jan 19, 2025

• #3

I have to adapt some audio recording for the simulation to test it still.

 

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rjenkinsgb

Well-Known Member

Most Helpful Member

• Jan 19, 2025

• #4

Sorry, but that is not going to work for multiple reasons. Among other things, neither transistor has proper bias and a diode connected directly to a cap cannot do anything useful.

If you are using batteries anyway, why not build a conventional radio? There are thousands of good, practical designs around.

 

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Lightium

Active Member

• Jan 19, 2025

• #5

Don't be sorry, it's just an unfinished idea I am trying to bring to reality.

 

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S

shokjok

Member

• Jan 25, 2025

• #6

Perhaps a MOSFET at the coil will improve signal reception and quality. Where's the antenna?

 

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DerStrom8

Super Moderator

• Jan 27, 2025

• #7

Please write down your theory of operation of the circuit and share it with us.

 

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