need help for choosing which circuit is better for DIY timing light.

Thread Starter

fredy mredy

Joined Jul 5, 2019
7
I was researching for making DIY timing light so i can use it on my mopeds, i found few schematics online but i don't know which one should i build or which one is better.
These 2 circuits are similar, the difference is the number of turns for the pickup coil, the 1st one uses less turns and there is diode in series with the coil and circuit.
The 2nd one need 500 turns for for pickup coil and there is no diode between coil and circuit

sources:
1. https://forum.allaboutcircuits.com/threads/need-help-making-a-diy-timing-light.154161/
2. http://www.howtoalmanac.com/kevin/projects/automotive/timinglight.htm

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This one i found it on youtube, it uses different type of transistor, 55 turns for the pickup coil, im not sure about this one but if its better i can make it.
 
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