Audio Memo Alert Circuit

Posted on Feb 7, 2014

This device prevents paper notes and memos from being overlooked. A paper note placed between two fingers made of a conducting material (metal or conductive plastic) breaks the circuit, allowing pair 1 of Ul-a to go high. We aim to transmit more information by carrying articles. Please send us an E-mail to wanghuali@hqew. net within 15 days if we a

Audio Memo Alert Circuit
Click here to download the full size of the above Circuit.

re involved in the problems of article content, copyright or other problems. We will delete it soon.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Temperature Sensor Project
    LED Voltmeter
    Decade resistor box
    Remote control for lamp or appliance
    Circuit Diagram Wiring
    Low Loss Step Down Converter
    modifying 4047 ic inverter into sine
    melody generator for
    The Hoser Paper
    transducer current limiter circuit
    3-6V Xenon Strobe Light
    Electronics Level 1
    Inexpensive Remote Watering System
    Metal detector 8
    Audio Voice-Over Circuit
    TDA2009 single power amplifier circuit diagram