 Posted: Thu Nov 22, 2007 4:46 am Post subject: |
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| Posted: Thu Nov 22, 2007 4:40 am Post subject: |
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| All you need is a Vox circuit.
Email me for a circuit. [email protected] |
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| Posted: Wed Nov 21, 2007 3:08 am Post subject: Odd Information Request, Headphones and Relays |
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| Hi guys,
I have a question that I can't really get an answer to anywhere else. I'm making a science project and I'm trying to see if I can't use my mp3 player to operate a relay switch. Now from what i've read, headphones use AC current to create sound. I took my multimeter and tested the wires from a cut headphone playing a constant tone and got a reading of around 2.450 on the 4m setting. (Not sure the units, would that be 2.450 milliamperes?) What I want to know is what kind of relay could I use with that kind of power? I want the relay to operate a 12V model motor. What kind of relay could I use? Would a relay be able to be tripped by that amperage? |
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