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Showing posts from July, 2012

12V Battery Checker Circuit

This is a 12V battery checker circuit that uses 3 LEDs that light up at their respective voltages… Read this circuit » 12V Battery Checker Circuit

Automatic light activated switch circuit

The circuit can be used for switching OFF a particular lamp or group of lamps in response to the v… Read this circuit » Automatic light activated switch circuit

Eight Band Sub-Woofer Graphic Equaliser

Your sub is installed and set up as best you can, but you can't quite get it to sound right. S… Read this circuit » Eight Band Sub-Woofer Graphic Equaliser

Fluorescent Tube Basics

While they have been with us for many years, fluorescent lamps remain somewhat mysterious to most … Read this circuit » Fluorescent Tube Basics

Ballast and Starter Fluorescent Lamp

Installation of fluorescent lamp circuits, we can see that most of the foot fluorescent lamp mount… Read this circuit » Ballast and Starter Fluorescent Lamp

LNB Cable Data Transceiver Circuit

This circuit was designed and used to transmit commands over LNB coaxial cable. An LNB (or LNC) is… Read this circuit » LNB Cable Data Transceiver Circuit

500Watt Power Amplifier Circuit

In this post I will publish the circuit schematic diagram of Power Amplifier with 500watt output … Read this circuit » 500Watt Power Amplifier Circuit

Car Wiper Control Using 555

Car Wiper Control Using 555 Circuit In rainy seasons, it is very annoying that wiper of your car w… Read this circuit » Car Wiper Control Using 555

Circuit Diagram of Remote Control Tester

Here is an infrared remote control tester circuit that can be made without spenting much money.Thi… Read this circuit » Circuit Diagram of Remote Control Tester

230V Flasher Circuit

This circuit operates with 230v.you can use this circuit to decorate your parties.I think this will… Read this circuit » 230V Flasher Circuit

20 Watt Class A Power Amplifier Circuit

A single-ended Class-A amplifier is essentially one where there is only one active driven output d… Read this circuit » 20 Watt Class A Power Amplifier Circuit

Simple condenser microphone circuit

This is a very use full and simple circuit diagram for amplifying weak signal from a capacitive co… Read this circuit » Simple condenser microphone circuit

Car Backup Alarm Circuit

The brake lights of the automobile trigger this circuit on and off. This save the annoyance of the… Read this circuit » Car Backup Alarm Circuit

Circuit 3 LED battery monitor

This is the circuit diagram of a 3 LED bar graph type battery monitor circuit that is ideal for m… Read this circuit » Circuit 3 LED battery monitor

Two Colour LED Light Bar Circuit

This circuit is a circuit run on alternating two insignia.It uses the 2-color LED with a built-par… Read this circuit » Two Colour LED Light Bar Circuit

LM12 - High Power Amplifier circuit

This is an amplifier circuit using ic LM12 as the main amplifier. This amplifier has a 150Watt pow… Read this circuit » LM12 - High Power Amplifier circuit

Class B power amplifier circuit

Excessive heat to be problematic in the amplifier Class A. Then be made to class B amplifier wit… Read this circuit » Class B power amplifier circuit

Filter-PreAmp Subwoofer Circuit

Acoustic spectrum is extended by the 20Hz frequency is very low and reaches as high frequency 20… Read this circuit » Filter-PreAmp Subwoofer Circuit

Non-Switching Current-Drive Amplifiers

Non-Switching Amplifiers Most of the distortion in Class-B is crossover distortion, and results … Read this circuit » Non-Switching Current-Drive Amplifiers

3-Way Crossover Speaker Circuit

Design simply what best fit the drivers' capabilities while focusing on keeping the woofer in … Read this circuit » 3-Way Crossover Speaker Circuit

10 W Audio Amplifier Circuit

This circuit is a general-purpose 10-W audio amplifier for moderate-power PA or modulator use in a… Read this circuit » 10 W Audio Amplifier Circuit

TDA7294 150 W Power Amplifier

This is power amplifier based on IC TDA7294 with output power 150W with 8 ohm impedance, source vol… Read this circuit » TDA7294 150 W Power Amplifier

2 Way - Speaker Crossover circuit

The series of crossover is an electronic circuit in which the point to separate the audio sound… Read this circuit » 2 Way - Speaker Crossover circuit

Simple Power Amplifier Circuit [2N3055]

Simple Power Amplifier Circuit Diagram Transistors: Tr1 BCY70 (or BC 182L or BC212L or BC214L… Read this circuit » Simple Power Amplifier Circuit [2N3055]

Mono to Stereo Audio Signal Circuit Converter

This circuit is used to convert a mono audio signal into a stereo signal that can be panned betwee… Read this circuit » Mono to Stereo Audio Signal Circuit Converter

LED Audio Level Meter Circuit

This circuit uses two quad op-amps to form an eight LED audio level meter. The op-amp used in this… Read this circuit » LED Audio Level Meter Circuit

OCL Power Amplifier Circuit MJ15003,MJ15004

This Power Amp OCL 100 watt circuit by transistors.They has been an old circuits, but very well am… Read this circuit » OCL Power Amplifier Circuit MJ15003,MJ15004

Inverter circuit 12V to 220V 100W

This circuit power Inverter 100W, it easy and good ideas. When use the electric appliances that wa… Read this circuit » Inverter circuit 12V to 220V 100W

0-300V Variable High Voltage Power Supply

Here is the variable high voltage dc power supply circuit, which we can customize the output volta… Read this circuit » 0-300V Variable High Voltage Power Supply

Adjustable Power Supply 1.2 – 30V 5A using LM338

If you want to a variable dc voltage power supply circuit during 1.2V to 30Vdc and can provide a … Read this circuit » Adjustable Power Supply 1.2 – 30V 5A using LM338

Circuit High-Voltage Generator with HEX FET

The schematic diagram below show a circuit of high voltage generator. This circuit uses a 4049 hex… Read this circuit » Circuit High-Voltage Generator with HEX FET

Subwoofer Speaker box design

The order of 4 or sealed rear chamber bandpass system is essentially a system of watertight enclos… Read this circuit » Subwoofer Speaker box design

Automatic detectors water tank pump circuit

This is a circuit detectors on the water pump. This circuit works automatically when the water is … Read this circuit » Automatic detectors water tank pump circuit