Analog Flip-Flop

Here the analog flip-flop circuit which built based on 2 transistors work as switch. This is very easy made and very cheap circuit. You can use this circuit as “the first project” for your students… 🙂

and the result should be like this:

Replace the Resistor 10K with variable resistor 20K or replace the electrolytic capacitor 100uF with other value for change the frequency of LED’s flash.

Flip flop PCB layout:

circuit diagram

View Comments

  • ahahaha...... //http.www.kill with me.com

    I can do this project by my own..... ^_^

    try it also by your self...

  • I'm looking for a time dependent characteristic ODE for this circuit, as it would make an excelent example for state space analysis.

  • How Can make a s-r or another types of flip-flop in this circuit.
    Plz Help me.
    I go make a pseudo generator in my lab project.

  • You can replace the resistor (470R) and the led with an relay (including a diode!).
    that way you can switch about anything you're mind can think off.

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