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melody generator circuit diagram

Police Siren Sound Effect Circuit

Electronic Siren Circuit Diagram siren circuit using 555 timer We are going to make a Police Siren Circuit using two 555 timer IC. The circuit will produce an up-down wailing sound from the speaker. In this circuit there are two 555 timer ic is used. Both 555 ic is connected as astable multivibrator/oscillator. In an […]

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Multitone Doorbell Alarm

Melody generator/ Door bell alarm

Multi-tone Musical alarm circuit IC UM3481 is an 8 song Melody Generator IC designed for the purpose of Melody generation in various gadgets. It is widely used in Doorbells, Alarm systems, Reverse horns, Toys, Clocks, and Timers etc. This circuit provides 8 tones. This multi-tone doorbell circuit produces 8 types of musical tone. You get

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