Variable pitch multivibrator circuit diagram

Published:2013/1/31 0:44:00 Author:Ecco | Keyword: Variable pitch, multivibrator | From:SeekIC

This circuit is composed of two 555 time-base circuits, and it can issue 400 ~ 2500Hz oscillatory wave with continuous changes, it is similar to the sound of public security police vehicles. The circuit consists of the boot delay, low-frequency oscillator and modulated tone generator.



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