The pulse tone generator provides one with the application of two 555 timers, resistors, electrolytic capacitors and a power source, all being connected together on a Vero board. This project attempted to incorporate into previously developed pulse tone generator useful features such as making the circuit simpler, variation to the tone by means of a variable resistor knob. A polyvinyl chloride (PVC) case is used as against metallic casings used in some previous works. In this project, a regulated dc power supply starting with a 220/12 volt, 500VA step down transformer is used to power the circuit. When the circuit is connected to the power source, the 555 timer IC triggers the loudspeaker to emit a loud audible sound. This sound will stay on for as long as the circuit is connected to the dc power supply. The component and circuits was tested and the design was implemented and realized.
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