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Meet Wailer, Siren like sound - (6,251 view(s))

Thursday, June 14th, 2012
Meet Wailer Final - ElectroSuite.com

ElectroSuite.com – Meet Wailer, Siren like sound. The siren kit is based on “feedback-oscillator.”  Simply press the push button, the circuit will start to isolate, and the frequency will increase rapidly due to a positive feedback.

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3904 3906 Siren Circuit - (3,583 view(s))

Thursday, June 14th, 2012
3904 3906 Siren Circuit - ElectroSuite.com

ElectroSuite.com – 3904 3906 Siren Circuit. The circuit produces a wailing siren sound when the switch is turned on.

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MPSW45A Electronic Chime - (3,054 view(s))

Tuesday, April 17th, 2012
MPSW45A Electronic Chime - ElectroSuite.com

ElectroSuite.com – MPSW45A Electronic Chime. This circuit simulates a chime similar to the sound many cars make when the keys are left in the ignition.

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Emergency Siren Simulator using 2N4401 and 2N4403 - (2,882 view(s))

Monday, April 16th, 2012
Emergency Siren Simulator using 2N4401 and 2N4403 - ElectroSuite.com

ElectroSuite.com – Emergency Siren Simulator using 2N4401 and 2N4403.

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Sirine Mobil Polisi Negara Inggris dengan IC 555 - (11,251 view(s))

Tuesday, July 26th, 2011
Sirine Mobil Polisi Negara Inggris dengan IC 555

Sirine Mobil Polisi Negara Inggris dengan IC 555

Rangkaian ini adalah Sirine Mobil Polisi Negara Inggris dengan IC 555, di sini kita menggunakan IC yang paling populer di dunia, yaitu IC Clock Generator 555.

IC 555 yang berada di sebelah kanan berfungsi sebagai pembangkit nada alarm, dan IC 555 yang berada di sebelah kiri berfungsi sebagai Multivibrator Astable 1 Hz.

Keluaran (output) pada IC 555 yang berada sebelah kiri adalah sebagai masukan untuk memodulasikan frekwensi terhadap IC 555 yang berada di sebelah kanan. Hal ini menyebabkan sinyal frekwensi yang dihasilkan bergantian antara 440Hz dan 550Hz dengan rasio putaran sebesar 1Hz.

Transistor 2N3055 berfungsi untuk membantu memperkuat sinyal ke speaker.

Sirine Mobil Polisi Negara Inggris dengan IC 555
Sumber : http://home.roadrunner.com/~randylinscott//feb21.htm

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3 in 1 Sirens using Transistor - (6,999 view(s))

Thursday, July 21st, 2011
3 in 1 Sirens using Transistor

3 in 1 Sirens using Transistor

This is 3 in 1 Sirens using Transistor Electro Suite, we can get 3 sound using this 3 in 1 Sirens using Transistor circuit, Fire Brigade, Police and Ambulance.

From the voltage of 12V we will get the current of about 180 mA.

Components

  • Voltage = 12 VDC
  • R1, R9 = 2K2
  • R2 = 470 ohm
  • R3 = 47 K
  • R4, R8 = 22 K
  • R5, R6, R7 = 18 K
  • R10 = 3K3
  • R11 = 1K
  • S1 = Switch 3 Ways
  • T1, T2, T3, T4 = BC547
  • T5 = BD136
  • T6 = AD162 / MJ2955
  • LS1, LS2 = Loudspeaker 8 ohm / 15 Watt
  • C1 = 100µ / 16v
  • C2 = 2µ2 / 16v
  • C3 = 10µ/16v
  • C4 = 47µ/16v
  • C5 = 22n
  • C6 = 33n

Electro Suite

3 in 1 Sirens using Transistor

3 in 1 Sirens using Transistor - extremecircuits.net

Source : extremecircuits.net

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All in One Siren using IC Sound Generator UM3561 - (4,891 view(s))

Thursday, July 21st, 2011
UM3561 Pin Configuration

All in One Sirens using IC Sound Generator UM3561

This is All in One Sirens using IC Sound Generator UM3561 Electro Suite, the heart of this project is IC UM3561, as Three Siren Sound Generator.

This UM3562 has some features :

  • Four sounds can be selected
  • Typical 3V operating voltage
  • RC Oscillator with an external resistor
  • A magnetic speaker can be driven by connecting an NPN transistor
  • Power on reset

Configuration

UM3561 Pin Configuration

  • Pin 1 = SEL2
  • Pin 2 = Vss
  • Pin 3 = Output
  • Pin4 = NC
  • Pin 5 = Vdd
  • Pin 6 = SEL1
  • Pin 7 = OSC1
  • Pin 8 = OSC2

Electro Suite

UM3561-Police-and-Machine-Gun-Sirens

UM3561-Police-and-Machine-Gun-Sirens

UM3561-Police-Fire-Engine-Ambulance-Sirens

UM3561-Police-Fire-Engine-Ambulance-Sirens

Source

  • datasheetcatalog.com

 

 

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Wailing Alarm Siren using Dual 555 IC Timer - (1 view(s))

Wednesday, July 6th, 2011

Wailing Alarm Siren using Dual 555 IC Timer

This is Wailing Alarm Siren using Dual 555 IC Timer circuit produce warbling sound, you can use it in your toys or  in security alarm.  The circuit use two 555 IC oscillator. In this alarm siren circuit, the first oscillator is employed to produce audio frequency. The second oscillator is employed to produce a modulating signal. This modulating signal make this alarm siren generates warbling sound.

You can try to change the capacitor C1 to change the warbling frequency. Using the component shown in the schematic diagram, this alarm siren gives 6 seconds warbling period. You can lower the C1 capacitor value to get higher warbling frequency, for example, you can try some values between 10 uF to 47 uF to get the suitable effect. This alarm siren circuit works with 5-15V power supply, but note that the 555 IC would suffer a significant self-heating when you use 12 volts or higher, and this may cause a shorter lifetime for the 555 IC chip.

Wailing Alarm Siren using Dual 555 IC Timer

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American Police Car Siren by IC 555 - (1 view(s))

Friday, May 20th, 2011

It uses two 555 timers in the circuit.

The 555 on the right is wired as an alarm tone generator and the second 555 timer on the left is wired as a low frequency astable timer which generates a ramp waveform of about 6 seconds that is buffered by the transistor and again used to frequency modulate the tone generator.

The transistor is used to help strengthen the signal to the speaker

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British Police Car Siren by IC 555 - (1 view(s))

Friday, May 20th, 2011

The first circuit simulates the siren of a British police car. It uses two 555 timers in the circuit.

The 555 on the right is wired as an alarm tone generator and the second 555 timer on the left is a 1 Hz astable multivibrater.

The output of the left timer is to frequency modulate the right timer.

This causes the right timers frequency to alternate between 440Hz and 550Hz at a 1 Hz cyclic rate.

The transistor is used to help strengthen the signal to the speaker.

via

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