Circuit Schematic 3 Tone Siren using UM3561 IC

Audio. - Here is Circuit Schematic 3 Tone Siren using UM3561 IC. 3 Tone Siren project produces Gun Sound, Police Siren and Ambulance Siren effects from a speaker.  This project is built around UM3561 IC driving an LM386 audio amplifier to give that extra punch.

Figure 1. Schematic 3 Tone Siren using UM3561 IC
(Source: www.electronics-lab.com)

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The Original Article : "3 Tone Siren"

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