An intercom is a stand-alone voice communications system for use within a building or small collection of buildings. It is a two-way communication electronic device that contains circuitry for the purpose of transmitting and receiving … Read more
Sidra Aziz
Nowadays in the music industry, electric guitars play a giant role. A guitar amplifier is an electronic circuit that is usually housed in a wooden cabinet to strengthen the weak electrical signal from an electric … Read more
Simple Guitar Amplifier Circuit using TDA7052 – DIY
Sound-activated switches are designed to provide a mechanism through which one can turn on or off any electrical appliance remotely through sound. Audio signal received through a microphone is amplified and compared with a specific … Read more
Sound Activated Switch Using LM386 Amplifier IC
Relay is a component that provides complete electrical isolation between their input and output contacts at very high, almost infinite resistance when non-conducting (open) and very low resistance when conducting (closed). Relays can be of … Read more
Solid State Relay using MOC3021 Optoisolator
Nowadays, most children’s toys like cars and bicycles are equipped with sirens. This siren can easily be made with few electronic components at home. This is a simple project that enables us to make a … Read more
Toy Ambulance Siren Using 555 IC
A latch circuit is a circuit that locks its output when an input trigger signal is applied and retains that state, even after the input signal is removed. This State will remain for an indefinite time … Read more
Latch Switch Using Transistors
Ring tones in the old telephone sets and piezo buzzer in the current electronic telephone instruments are not so melodious. In order to make telephone ringtones soothing and pleasant to the ears. Here is a … Read more
Telephone Ringtone Generator Using 555 IC
The motor plays an important role in many engineering applications. People always search for an efficient and easy way to control these motors. There are many techniques available in both AC and DC to control … Read more
Simple Sound Controlled DC Motor using CA3140 IC
A volume unit (VU) meter is a device displaying a representation of the signal level in audio equipment. They are used in telephone installation and radio broadcast stations. Consumer audio equipment often features VU meters, both for utility purposes (e.g. in recording equipment) … Read more
LED Audio Level VU Meter Using Transistors
Siren is a continuous tone that varies in frequency. Usually, the output of the siren circuit is very low which is hard to hear. Therefore, it is needed to build a circuit that can amplify … Read more
Simple Siren Enhancer Circuit 10Watt Using IRF9540
Have you ever forgotten to shut your home door at night? This might be a terrible experience as it can provide a way to thieves to enter your home. Here is a simple electronic project … Read more
Simple Multiple Door Indicator Circuit
With the rising number of mosquito-borne illnesses like malaria or dengue, control of mosquitoes is something of utmost importance in the present day. Therefore, special products are required like mosquito repellent to combat mosquitoes. This … Read more
Mosquito Repellent Circuit Using Two Transistors
A simple electronic toy piano can be easily constructed using transistors and a few discrete components. The circuit consists of two parts. The first part is of transistors that are wired to form an Astable multivibrator. … Read more
Electronic Organ Circuit Using Transistors
S8050 is a low voltage high current small signal NPN epitaxial silicon transistor, designed for Class B push-pull audio amplifier and general-purpose applications. S8050 has a gain value of 110 to 400. The maximum collector … Read more
S8050 NPN Transistor – Datasheet
2N2222 is an NPN bipolar junction transistor commonly used for low power amplification and switching. It has three terminals namely emitter, base, and collector. It is designed for low to medium current, low power, medium voltage, and can … Read more
2N2222 NPN Transistor – Datasheet
BC546 is an NPN epitaxial silicon transistor that is available in a TO-92 package. This transistor is very popular for its high voltage characteristics where the maximum voltage across collector-emitter (VCE) could be 65V and … Read more