Gasoline engine tachometer


Posted on May 13, 2012

This tachometer can be set up for any number of cylinders by linking the appropriate timing resistor as illustrated. A 500 ohm trim resistor can be used to set up final calibration


Gasoline engine tachometer
Click here to download the full size of the above Circuit.

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.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Tracking System using GPS and GSM modem
    Ponyprog for AVR & PIC16F84
    Logic-pulser
    netduino Motor not working via transistor
    MFOS Mini-Controller circuit
    DIY/Homemade Geiger Muller Clicker V1
    555-pin chip data and circuit diagrams



    Top