Simple Gasoline Engine Tachometer Circuit Diagram

Simple gasoline engine tachometer circuit diagram is the simple project for hobbyist and students,  Gasoline Engine Tachometers. For gasoline engine measurement applications. For gasoline/diesel engines and general rotating objects.This tachometer can be set up for any number of cylinders by linking the appropriate timing resistor as illustrated. 
 

 Simple Gasoline Engine Tachometer Circuit Diagram

 
Simple Gasoline Engine Tachometer Circuit Diagram
 
A 500 ohm trim resistor can be used to set up final calibration. A protection circuit composed of a 10 ohm resistor and a zener diode is also shown as a safety precaution against the transients which are to be found in automobiles. If you like this project share your affordable comments leave below for us.

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