555-based Toy Organ   

 

           

Figure 1.  Circuit Diagram for a Simple Toy Organ    This is a circuit for a very simple toy organ.  The main component of this circuit is the 555 timer IC, configured as an astable multivibrator.  A 555 configured as such outputs an oscillating signal with a frequency determined by the values of R1, R2, and the capacitor connected between pin 1 and pin 2.    In this circuit, every time one of the switches is pressed, a capacitor of certain value is connected to the 555, causing it to deliver a signal of corresponding frequency to the speaker, thereby producing a tone specific to the switch pressed. By choosing the capacitor values well, the tones produced may mimic those of an organ.  The number of 'keys' in this toy organ may be increased by adding more switches and capacitors.

TOY ORGAN Circuit

 This circuit produces a tone according to the button being pressed. Only 1 button can be pressed at a time, that's why it is called a monophonic organ. You can change the 1k resistors to produce a more-accurate scale.

Single IC Organ By IC NE556When you will think to build Single IC Organ Circuit the some one. I begs for to advise this circuit , because use IC NE556 or LM556. Which within its structure is like have the integrated circuit IC 555 arrive at 2 together follow my circuit. Control by Keyboard contacts and SW1 Tremolo ON/OFF as a result can choose music pitch that can want.The detail about mini Organ Circuit the this. Can see in circuit picture sir.

Organ Mini Using NE555    Multivibrator NE555 dapat digunakan untuk membuat suatu organ mini. Yaitu dengan membuat rangkaian saklar untuk menyambungkan komponen C (terlihat pada Gambar 1). Nilai dari C adalah seperti terlihat pada Tabel 1, karena frekuensi keluaran pada speaker adalah dipengaruhi oleh nilai C, maka dengan menghubungkan tiap C secara bergantian maka akan didapat bunyi nada yang berbeda-beda. 

 

  

Gambar 1. Rangkaian organ mini menggunakan NE555. 

    

Tabel 1. Daftar komponen yang diperlukan untuk Gambar 1. 

 

FOUR-OCTAVE ORGAN 1 year ago   Karma: 1   2009-07-02

555 7473 Two 7473 dual flipflops provide four frequency dividers for 555 timer connected as master tone generator. S1 gives fundamental frequency. and each succeedlig switch gives tones precisely one octave lower. Four organ applications, pushbutton switches are added to timer circuit for switching frequency-controlling capacitors or resistors to give desired variety of notes．－F. M. Mims.″Electronic Music Proiects.vol 1.″Radio Shack.Fod Wodh.TX.1977.2nd Ed.p45－53

HEE HAW SIREN Circuit

Build the circuit and listen. Change the resistors and capacitors to get all sorts of different results.

LASER RAY Circuit

This circuit produces a weird "Laser Ray" sound and flashes a white LED at approx 5Hz:

MACHINE GUN Circuit

This circuit produces a sound very similar to a machine gun:

POLICE SIREN Circuit

The Police Siren circuit uses two 555's to produce an up-down wailing sound. The first 555 is wired as a low-frequency oscillator to control the VOLTAGE CONTROL pin 5 of the second 555. The voltage shift on pin 5 causes the frequency of the second oscillator to rise and fall. 

SIREN 100dB Circuit

This is a very loud siren and if two or more piezo's are located in a room, the burglar does not know where the sound is coming from.

A robber will not stay anywhere with an ear-piercing sound as he cannot hear if someone is approaching. It's the best deterrent you can get. The "F" contact on the piezo is "feedback" and is not needed in this circuit.

TICKING BOMB Circuit

This circuit sound just like a ticking bomb.

TOY ORGAN Circuit

 This circuit produces a tone according to the button being pressed. Only 1 button can be pressed at a time, that's why it is called a monophonic organ. You can change the 1k resistors to produce a more-accurate scale.

WAILING SIREN Circuit

By pressing the button, the wailing sound increases. Releasing the button decreases the wailing.

The circuit automatically turns off after about 30 seconds.

MUSIC BOX Circuit

This circuit produces 10 different tones and by selecting suitable values to change the voltage on pin 5, the result can be quite pleasing. Note: the two unused outputs of the 4017 produce a tone equal to that produced by the 555 when pin 5 has no external control voltage.

Annoying high pitch noise generator by 555

This entry was posted on Monday, April 28th, 2008 at 11:53 am and is filed under 555, oscillator generator.

This is a simple high pitch noise generator circuit. It has a timer oscillator with a frequency variable from 15khz – 30khz.The circuit can be mounted in a plastic box like I have done. The good thing about high frequency sounds is that it is very hard to find where they are coming from. Also, the noise is very annoying and irritating. The crystal speaker is the creamy coloured thing at the bottom of the photo on the left.

Sound Generator with IC 555 circuit diagram

This is a sound generator based on timer IC 555. A flip-flop circuit is included, so this circuit will give sound output and blinking LED.

Components:

Resistors:R1, R7___________________ 470ΩR2_______________________ 1kΩR3_______________________ 68ΩR4, R6___________________ 56kΩR5_______________________ 47kΩR8, R9___________________ 10kΩVR1______________________ 200Ω Potentiometer

Capacitors:C1, C2, C3_______________ 10μF/16VC4, C5___________________ 0.02μF (20nF)C6_______________________ 100μF/16V

Semiconductors:Q1, Q2___________________ 2N3904IC1______________________ 555 or 1455LED1, LED2_______________ LED