5 Volt DC Regulator to charge iphone and other phones from 12 or more DC voltage

5 Volt DC Regulator to charge mobile phones from variable DC voltage

 Mobile phones commonly charge with 5 volt regulated DC supply, so essentially we are going to build a 5 volt regulated DC deliver from 35 - 7 volt DC.

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How to easily repair Momentary Switches used in boats

Momentary switches make generators and motors begin at the push of a catch. In any case, when they don't begin, consider the switch as opposed to the segment itself.

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Simple 3 Watt and 5 Watt LED Driver Circuit Using IC 338

The IC LM338 as we probably are aware, is a profoundly adaptable gadget with regards to controlling voltages and current levels.

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Remote control switch on or off for home appliances

Associate this circuit to any of your home apparatuses (light, fan, radio, and so on) to make the machine turn on/off from a TV, VCD or DVD remote control. The circuit can be activated from up to 10 meters.

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Simple Car Audio Amplifier Circuit

A straightforward low power car stereo amplifier circuit taking into account TDA 2003 is showed here.

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Using Arduino as a simple Web Server along with Ethernet shield

Using an Ethernet shield along with Arduino board you can turn it into a simple web server which can be accessed by anyone on the internet, and by accessing that server with a browser running on any computer connected to the same network as the Arduino board, you can:

• Control hardware from the webpage like fan or lights (using Javascript buttons).
  
• Read the state of a switch which can be either ON or OFF (using simple HTML).
  
• Read value of a sensors connected to Arduino board (using simple HTML).

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Simple +-400Watt Amplifier using TDA7294 or TDA7293 + Power Transistors 2SC5200 and 2SA1943

This additional part can be added to the traditional chip amp made using TDA7294 or TDA7293 to gain extra power in output.
The traditional chip amp produces about 40-50watt rms output which isn't any less but by adding these power transistors it can maximize the output to extreme.

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Stun Gun Circuit Diagram using 555 timer IC

CAUTION: Before going to explain about this circuit, we are going to strictly suggest that DO NOT TRY TO IMPLEMENT IT PRACTICALLY AS IT PRODUCES VERY HIGH VOLTAGE. 
DO IT ONLY UNDER A PROFESSIONAL'S GUIDANCE!


A stun gun is usually a device used to produce a very high voltage, low current signal and is used mostly as a weapon to stun or send shock waves to the target with the intention to weaken or paralyze the target.

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A simple 12V battery charger schematic using LM317

This is a simple 12Volt Battery Charger Circuit which can be made using less components.

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500 Watt Inverter using Transistor 2N3055 along with Transformer ratings

This Circuit has been corrected while it had minor issues in the past, the circuit has been fully debugged for any problems and made 100% working now.

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Making your own 10,000 to 25,000 volt capacitor

We are going to make a big High Voltage Capacitor, so please do not try this unless you are an expert in handling high voltage equipments.

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Doing a Country Style track lighting.

Track lighting is another expansion in enriching our homes environment. It gives an extremely lovely lightning effect. One can change its brightening through a control unit in regards to the amount of light is needed. 

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While innovation is at it's peak are you still wondering how solar panels work?

Solar Panels are turning out to be more well known today as a distinct option for conventional power era systems. By utilizing Solar Panels, we can outfit the Heat and Light energy gave by the sun and create power for anything from an icebox to a car. Have you ever seen Solar Panel secured rooftops or school zone signs with Solar Panels on and thought about how these Solar Panels work and what's going ahead "behind the boards?" "How do solar panels work?"

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Audio Clipping Peak Indicator using IC TL062

This Simple Audio Clipping Peak Indicator circuit was expected to distinguish clipping in preamp stages, mixers, equalizer, amplifiers and so on. It can be utilized as a different, convenient unit, to signal by using some LEDs when the output wave form a specific sound stage is "cutting" i.e. is coming to the onset of its maximum permitted peak voltage value before an over-load is happening. This will help the operator in avoiding extreme twisting or distortion in the audio to be created through the sound hardware chain, as if it were shielding your amplifier equipments and speakers from over-loading.

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How to make a 2 Watt audio amplifier from discrete components

A 2 Watt audio amplifier made from discrete components.

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