Learn how to build a simple car burglar alarm circuit right in your home. The circuit is built around a few trivial components and yet proves to be totally fool proof with the security of car accessory to which it has been integrated. You certainly won’t like waking up just to see your car audio […]
Simple
Simple Tea Coffee Vending Machine Circuit
A simple tea, coffee vending machine circuit idea is explained here which allows a customer to access the beverage with a press of a button and by inserting a genuine 5 rupee coin. The idea was requested by Mr. Ramesh. Circuit Objective and Requirement I need the water puling mechanism like coffee vending machine if […]
Simple Bird Sound Generator Circuit
The diagram presented below shows a simple circuit of a bird chirping sound generator. All the parts are very common and the transformer is an ordinary type as found in small transistor radios at the output stage Circuit Operation The circuit is basically a feedback oscillator circuit that is configured around a small output transformer. The transistor forms the […]
Make this Simple Buzzer Circuit with Transistor and Piezo
In this article I have explained how to make a very simple circuit for buzzer using piezo electric transducer, two resistors, a small coil and a BC547 transistor. A buzzer is a high frequency oscillator circuit used for generating a buzzing sound through a transducer or speaker output. Simple Buzzer using a Single Transistor Just […]
Simple Stereo Amplifier Circuit Using IC TDA1521
A simple stereo audio amplifier circuit discussed here is built around the IC TDA 1521, requires very few external passive components and is able to provide a powerful 12 + 12 watts of music output. Main Features of the Stereo Amplifier IC The IC contains all the built in features required for an amplifier circuit […]
Make this Simple Music Box Circuit
This simple circuit can be used to emulate the operation of a music box. The number of notes may be limited to 10 at the most, and therefore is capable of generating a simple melody. By: Akanksha Rathode Circuit Operation The circuit uses two popular integrated circuits: The timer 555 and 4017 decade counter Operation […]