Ambulance Siren Circuit Diagram
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FREE CIRCUIT DIAGRAMS 4U: Three sirens in one Circuit
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Siren_generatorThe sound of a siren by using 555 timer ic. Siren circuit diagram using two transistors6 simple transistor.
![The sound of a siren by using 555 timer IC.](https://1.bp.blogspot.com/-WpZeSnibiNU/XvYJdlOpotI/AAAAAAAACQM/30apF8k_0H0lKDBO5Ji1V9dqL-M0tqqwwCLcBGAsYHQ/s16000/Police%252CAmbulance%2Band%2BEmergency%2BKojak%2Bsiren%2Bcircuit%2Bdiagram..jpg)
Simple police siren "us-style"
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![Siren Circuit diagram using two Transistors - Gadgetronicx](https://i2.wp.com/www.gadgetronicx.com/wp-content/uploads/2014/05/two-transistor-siren.png)
Ambulance (hee-haw) siren
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![Light activated police siren using 555 timer and light dependent](https://i2.wp.com/www.buildcircuit.com/wp-content/uploads/2012/03/police-siren-with-ldr2.jpg)
![Ambulance (Hee-Haw) Siren | Simple Circuit Diagram](https://i2.wp.com/www.simplecircuitdiagram.com/wp-content/uploads/2010/06/Ambulance-Siren.gif)
![High Power Siren Circuit - Circuit Diagram Images](https://i2.wp.com/www.circuitstoday.com/wp-content/uploads/2008/02/High-power-siren.jpg)
![FREE CIRCUIT DIAGRAMS 4U: Three sirens in one Circuit](https://3.bp.blogspot.com/-h7wum5V1X8E/ToVOatVFJ3I/AAAAAAAAB6U/9OdlWkpR1_0/s1600/police-ambulance-fire-engine-siren.jpg)
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![Siren Generator using IC UM3561](https://i2.wp.com/electrosome.com/wp-content/uploads/2014/07/Ambulance-Siren-usingIC-UM3561.jpg)
![Simple Siren Circuit](https://i2.wp.com/electroschematics.com/wp-content/uploads/2009/01/siren.gif)
![UM3561 electronic siren circuit diagram - Electronik & Computer](https://2.bp.blogspot.com/_1KIwZrxSy6A/TOuX5TyegMI/AAAAAAAAAgk/PwHh0Q7RwPI/w1200-h630-p-k-no-nu/police-fire-engine-ambulance-siren-machine-gun.jpg)
![6 Simple transistor | police | ambulance Siren (audio alarm) circuits](https://i2.wp.com/www.eleccircuit.com/wp-content/uploads/2020/02/American-Hong-Kong-police-siren.jpg)
![SIREN_GENERATOR - Signal_Processing - Circuit Diagram - SeekIC.com](https://i2.wp.com/www.seekic.com/uploadfile/ic-circuit/2009713231647126.gif)