Posted on Feb 18, 2013

This compact metronome will run for years on a single nine-volt transistor battery. Has both tone and pulse rate controls, and uses touch plates to start and stop, can be built in a case no larger than a pack of cigarettes. The touch plates consist of two strips of metal about 1/16-inch apart mounted on, but insulated from, the case

Click here to download the full size of the above Circuit.

Bridging the gap closes the switch.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Light-Wave Voice-Communication Receiver Circuit
    design for amateurs 40A stabilized power supply circuit
    rfid with arduino
    tx atv
    Fsk Modulation And Demodulation With The Microcontroller Msp430
    Arduino UNO Tutorial Rotary Encoder
    USB Switch For Printers
    infrared ir receiver
    LED Lighting For Dual-Filament Lamps
    A typical computer motherboard CPU power supply circuit