SIMPLE_BIKE_HORN

Published:2009/6/18 1:57:00 Author:May | From:SeekIC

The horn circuit uses only one gate of a 4093 quad 2-input NAND Schmitt trigger, U1, con-nected in a simple, low-frequency, square-wave oscillator circuit. The oscillator's output, at pin 3, drives the gate of Q1. The drain of that FET drives a small horn speaker.Potentiometer RI can be adjusted to set the horn's output frequency. Some horn speakers are frequency sensitive, so play with the oscillator's frequency control for the best or loudest sound.



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