simple electronic organ


Posted on Feb 7, 2014

This electronic organ is very simple to construct and can provide hours of enjoyment particularly for children. The circuit is basically an emitter-coupled oscillator composed of T2 and T3. An squarewave voltage can be sampled from the collector of T3(X2). This signal gives the tone a clarinet character. Without the squarewave signal, the sound pr


simple electronic organ
Click here to download the full size of the above Circuit.

oduced by the emitters of T2 and T3(X4) has a violin character. An additional vibrato signal can be added to this basic sound through switch S1. The frequency of the vibrato is approximately 6 Hz. Its amplitude is determined by the resistor R4. The value of R4 can vary from 100 up to 300K. Try experimenting with different values. The keys can be made of either metal plates or etched printed circuit. The trimmers P1 up tp P8 adjust the pitch of each tone. The tones can be drastically changed by changing the value of C4.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Capacitance Meter ( 68HC711D3FN )
    Arduino BarGraph
    led display circuit diagram
    17 colpitts ham lesson
    am transmitter double side band
    807 Tube Triode Connected
    Analog Filters for Data Conversion
    MicroSimon
    Ensemble RXTX Builders 2
    Having a current negative feedback speed control system



    Top