A very simple heat detector alarm electronic project can be designed using the UM3561 sound generator circuit and some other common electronic parts . This heat detector electronic circuit project uses a complementary pair comprising npn and pnp transistor...
Friday, October 31, 2014
Headphone Amplifier Using Discrete Components
An amplifier to drive low to medium impedance headphones built using discrete components.Both halves of the circuit are identical. Both inputs have a dc path to ground via the input 47k control which should be a dual log type potentiometer. The balance...
Thursday, October 30, 2014
Easy Balanced Output Board For The Stereo DAC Circuit
Easy Balanced Output Board For The Stereo DAC Circuit. This add-on board is designed to provide a pair of balanced audio outputs for the High-Quality Stereo DAC (Digital to Analog Converter). Two 3-pin male XLR connectors are used for the new outputs...
THE LEACH SUPERAMP 270 W
This amplifier is the monophonic 270 watt Double barreled Amplifier. For the original article, I specified plus and minus 85 V dc power supply voltages. The voltage can be increased to about 93 V to obtain a power rating of 300 W. The amplifier can be...
Wednesday, October 29, 2014
Temperature Candle Using LED
LED based projects require a lot of skill and hence only experienced circuit designers try out these circuits. But there are also a few circuits in this genre that can be done by amateur electronic hobbyists. The temperature candle is one such circuit....
6V to 12V Converter Circuit with BD679 BC547
This is a design circuit for converter circuit. This circuit is based on transistor as controller the circuit. There are two types of transistor that is BC547 and BD679. This circuit is a simple design of converter or inverter. This is the figure of...
Tuesday, October 28, 2014
Two Colour LED Lights Bar
This circuit is a circuit run on alternating two insignia.It uses the 2-color LED with a built-participating in 3-pin single.This preference look for away the glow of every LED until the base.It turns alternating to one more color.In in the least way...
Alpine Audio Amplifier 500 Watt RMS
Alpines Amplifier to chain is a good series of normal-grade amplifiers. They arent lofty terminate, but they value is isnt "high end" either. They are efficient and control well with vehicles with the purpose of dont exactly say a bundle of further amps...
Monday, October 27, 2014
How to check TV Flyback
There are actually several kinds of tools that can be used for check whether flybak damaged. But we have a simple way we have always done for ascertain whether flybak damaged or is still good, before replacing the horizontal transistor. All it takes...
Phone busy pointer circuits
Phone circuits are busy pointer. A busy signal is a signal that indicates that someone is trying to call a phone number but could not be contacted because the phone if it is not involved, or because the circuits are busy, calls are impossible to solve.On...
Sunday, October 26, 2014
3 Watt stereo amplifier circuit
3 Watt stereo amplifier circuitusing MAX 7910 IC. The MAX9710 a stereo audio power amplifier IC capable of delivering 3Watts of out put to 4 Ohm loads. MAX9710 can be operated from a single 4.5V to 5.5V power supply , makes it ideal for hand held...
Saturday, October 25, 2014
Output Relay Delay Audio Amplifier Diagram Circuit
This is a simple circuit which I built to one of my audio amplifier projects to control the speaker output relay. The purpose of this circuit is to control the relay which turns on the speaker output relay in the audio amplifier. The idea of the circuit...
Friday, October 24, 2014
10 2 Surround Sound Systems
10.2 channel surround is the yet to come surround sound machinery so as to residential by THX corporation, the pet name itself, 10.2 is an cutting edge version of 5.1 tools but 10.2 is twice like mild as 5.1. concerning a 10.2 surround sound 14 channels...
Thursday, October 23, 2014
50W Circuits Car Subwoofer Amplifier
The Car Subwoofer Amplifier 50W Circuit was posted by the side of trendy kind Amplifier. Please examine carefully and look on circuit design pictures of Car Subwoofer Amplifier 50W Circuit to catch aspect in sequence.50W Circuits Car Subwoofer Amplifier This...
TDA7000 Single Chip FM Radio
This fm radio series fm radio receiver circuit that uses a single ic TDA.Quite easy to make this fm radio circuit, where all functions can be done by IC TDA, so we only add to the technical components only. External components are intended to support...
Saturday, October 18, 2014
1 25V to 12Vdc Variable Output Low Noise
This circuit is DC converter low voltage , 12V from be 1.25V to 10Vdc by can give current topmost get about 1.5A. You should use IC number LM317K because have electric many power more the number LM317T. By should hold heat sink. That have large-sized...
PIC18F2620 Etching pan rocker
Some people consider PCB etching as a tedious task. One has to have extra care in handling the etchant – which stains, one needs to keep an eye on it to avoid over etching and one needs to rock the etching pan to speed up the etching process.To make...
Petrol Gas Switch For A Pajero circuit and explanation
My current vehicle, a Pajero, was modified for dual fuel - ie, petrol and gas. However, its necessary to run the vehicle on petrol at regular intervals to stop the injectors from clogging up. This simple circuit allows the vehicle to be started using...
9v Portable Headphone Amplifier circuit and explanation
High Quality One-IC unit, Low current consumption-After several requests by correspondents, the decision of designing a 9V powered Headphone Amplifier was finally taken. The main requirement was to power the circuit by means of a common, PP3 (transistor...
For Bicycles Rear Light After Glow circuit and explanation
This article is of interest only to readers whose bicycle lights are powered by a dynamo. The laws on bicycle lights in the United Kingdom are stricter than in other countries and a dynamo is, therefore, a rarity in this country. From the point of view...
TL431 Regulator Adjustable Explanation and circuit
This be simple Adjustable voltage regulator power supply circuit, at use integrated number circuit TL431. By from the circuit can fine volt 3V – 30V, depend on feed volt supply input and change the value R2 , R1. It follow a formula calculates Vout =...
Breadboard module using A PIC16F628A
You don’t usually see microcontroller projects in a breadboard and I’ll give you one reason why – microcontrollers require some external components that eventually consumes the prototyping space in a breadboard. This is one of the reasons why hobbyists...
IC 4047 2N3055 with PCB Inverter 100W
This circuit power Inverter 100W, so input voltage 12V (battery 12V)to output volt 220V ac 50HZ, it is asy circuit because less component to use.It use IC 4047 Squarewave Oscillator 50HZ andPower Transistor 2N3055 x 2 For driver transformer 220V ac to...
12A, 100V, 0.300 Ohm, P-Channel Power MOSFETs
These are P-Channel enhancement mode silicon gate powerfield effect transistors. They are advanced power MOSFETsdesigned, tested, and guaranteed to withstand a specifiedlevel of energy in the breakdown avalanche mode ofoperation. All of these power MOSFETs...
Friday, October 17, 2014
IC 741 2N3055 Power Amp OCL 70w
Younger brothers and sisters a student takes an interest to build electronics project sends a teacher. I then choose this circuit , because build easy be valuable certainly. It is Main Power Amplifier Circuit 70Watt RMS sizes are model OCL Class AB....
Variable DC Power Supply Circuit Diagram
This project provides the schematic & the parts list needed to construct a simple DC Power Supply from an input power supply of 7-20 V AC or 7-30V DC. This project will come in handy in case you use plenty of batteries for your basic electronics...
Thursday, October 16, 2014
Constructing your own Dual Power Supply Rise
Many times the hobbyist desires to have a simple, dual power supply for a project. Existing power supplies may be large either in power output or physical size. a simple Dual Power Supply is necessary.For most non-critical applications the best &...
Build Motorcycle Alarm Circuit Diagram
This is a Motorcycle Alarm Circuit Diagram. Any number of normally open switches may be used. Fit the mercury switches so that they close when the steering is moved or when the bike is lifted off its side-stand or pushed forward off its center-stand....
Build a Simple Emergency Light and Alarm Circuit Diagram
This Simple Emergency Light and Alarm Circuit Diagram is permanently plugged into a mains socket andNI-CD batteries are trickle-charged. When a power outage occurs,the lamp automatically illuminates. Instead of illuminating alamp, an alarm sounder can...
Diagram engine compartment of 1970 Plymouth Belvedere GTX
This is engine compartment of 1970 Plymouth Belvedere GTX, Road Runner, And Satellite wiring diagram. It shows the various electrical circuits, fuses, distributor, e...
Wednesday, October 15, 2014
Simple Phase Shift Meter for Audio Frequency Signal
Simple phase shift measurement can be done by squaring both the measured and the reference, then compute the difference of the two signals. The accuracy of the circuit shown in the schematic diagram below is 1% UP to 2000 cps.This circuit is used...
Simple Active ir Motion Detector Circuit Diagram
To explore how different motion detectors operate.To successfully build and test an ambient-light-ignoring active IR motion detector.Background There are a wide variety of motion detectors available currently. To allow a better understanding of...
Tuesday, October 14, 2014
Switch Mode Pre Regulator circuit diagram
Switch Mode Pre-Regulator Circuit The botheration was that a voltage regulator had to bead the 18 volt capital ability accumulation voltage to 8 volts at 500ma to ability the CD player, crumbling 5 watts of ability and causing a lot of calefaction central...
Monday, October 13, 2014
DIY Data Glove Interface Known as HandUSB
Overview The project can be considered as futuristic as a data glove which can be connected through USB instead of RS232 in order to become an alternative controller for the Pinch Glove fingertip contact glove. Explanation A very small SubD...
UltraSonic Radar Ultrasonic Radar Circuit Board 2 This is a ultrasonic radar project with many practical applications in security and alarm systems
This is a ultrasonic radar project with many practical applications in security and alarm systems for homes, shops and cars. It consists of a set of ultrasonic receiver and transmitter which operate at the same frequency. When something moves in the...
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