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    Homemade 555 Tachometer

    Hi everyone, I found this schematic online and I'm curious how I can adapt it to my motorcycle. My bike is a 1 cylinder, 4-stroke engine that fires the plug on every stroke (not every other like normal). As I understand it the circuit outputs 0.01 ua for every 1 RPM. 50ua = 5000 RPM. In my case...
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