Electronic Organ Circuit

Published:2012/9/27 21:37:00 Author:muriel | Keyword: Electronic Organ | From:SeekIC

This electronic organ circuit is very simple to construct and 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 a clarinet character to the tone.Without the squarewave signal, the sound produced by 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 around 6 Hz. Its amplitude is determined by the R4. The value of R4 can vary from 100 up to 300KΩ but you can experiment with different values. The organ keys can be made of either metal plates or etched printed circuit.The trimmers P1 up to P8 adjust the pitch of each tone. The tones can be drastically changed by changing the value of C4. Electronic Organ circuit diagram Printed Circuit Board for the Electronic Organ



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