Oscillator operates from one cell


Posted on Apr 30, 2012

The circuit is powered by a single 1.35 V mercury cell and provides a 1 V square-wave output. As shown, the crystal is a tuned circuit between transistors Ql and Q2, which are connected in the common-emitter configuration. Positive feedback provided by means of R permits oscillation.


Oscillator operates from one cell
Click here to download the full size of the above Circuit.

The signal at the collector of Q2 is squared by Q3, which switches between cutoff and saturation. R7 permits short-circuit-proof operation.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    12 Vdc - 120 Vac Inverter
    Digital Thermometer
    electronic doorbell using UM3481
    microcontroller Analog to Digital Converter and Negative Voltages
    Fine Control Super Bright LED Pulser
    TDA2030 Subwoofer Amplifier Circuit PCB
    audio-circuits
    RA-203
    Simulator Test Tools Speed Circuit Design
    Op amp F003 composition of automatic exposure timer circuit
    Voltage controlled gain amplifier circuit diagram



    Top