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Thursday, July 23, 2009

Simple Dual Tone Train Horn Circuit Using 555 IC

This circuit a simple design for dual tone train horn simulator circuit can be made using two NE 555 timers connected in cascade. This is the figure of the circuit.

Here instead of using two NE 555 timers a single NE 556 timer is used which is a nothing but two 555 ICs in one package and each timers work independently. Switch S1 can be used to start the horn. The circuit is simple and low cost but works greatly. Use a 9V DC power supply or battery for this circuit.


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