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| ahonda55 |
Posted - Apr 23 2005 : 04:51:32 AM
Hi all , i have something and i need some information !!
you know the "Timing Light" , the bright light that mechanic use to adjust the ignition timing ....
that tool connected to the car battery and to the spark plug cable from outside , i need to know how does the device feels the electric current without tuching the wire in the cable .
i am thinking of making a simple device with a white or blue LED , but i need to know that idea.
So , anyone can help ??
Thanx alot
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| 1 L A T E S T R E P L I E S (Newest First) |
| Aaron Cake |
Posted - Apr 26 2005 : 09:31:59 AM
Most timing lights use an inductive pickup. It's basically a coil of wire that you clip around the spark plug wire. When the plug fires, it generates a low voltage in this coil, which then triggers the light.
You can easily do the same thing with an LED by wrapping a few coils around the spark plug wire, amplifying the signal, and outputting directly to an LED.
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