Continuity Tester - Construction
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The modified schematic.
I wanted to use different probes, so I added an audio trerminal block.
The probes plug into the terminal block; one red, one black.
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Some parts:
A project box, an LED I had sitting around, a battery connector and an audio terminal block thingie...
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The audio terminal block.
I used a dremel to cut out the project box where the terminals went, then pop riveted the block to the box.
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The block from the top.
Note the precision dremel work...
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The two black terminals are wired together and attach to the battery (yeah, I used a red wire. I are smart like that....)
the two red terminals attach to the LED.
It will work as long as one probe is attached to a black port and one to a red port.
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A top view of the connections to the terminal block.
The other terminal of the battery (the black wire) completes the circuit to the LED.
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The battery in it's holder and the holder smushed into the project box.
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It's alive!
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Alive!
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Top on, ready to go...