Electronics

  • How to Revive a Dead Phone Battery
    Cellphone batteries get a lot of use The chances are you top up your battery frequently to ensure it's always got power, rather than allowing it to completely discharge. But ...
  • How to Extract the Gold From Computer Circuit Boards
    Computers and other electronic devices contain gold and other precious metals in their circuit boards As consumers upgrade their electronic gadgets, the precious metals ...
  • How to Polish Rocks With a Dremel Drill
    Rock polishing machines are noisy and tumble rocks together to create a smooth and shiny surface You can create similar results without this machine. A Dremel tool with a ...
  • How to Replace an Invicta Watch Battery Without a Tool
    Replacing an Invicta watch battery without the proper tools can be performed, but it can be difficult if the screwdown case back is too stubborn to unscrew Replacing the ...
  • How to Ruin an Engine
    There are actions you can take, whether deliberate or inadvertent, that can lead to ruining an internal combustion engine
  • Types of Small Airplanes
    There are several categories of small airplanes primarily used by recreational pilots Different aviation certifications are needed for the different categories. This article ...
  • How to Check or Test for a Short Circuit With a Multimeter
    A multimeter is an electronic device used to measure voltage, current and resistance in electrical circuits There are many models of multimeter, and they may be either ...
  • My RC Car Will Not Go Forward
    Radio controlled cars are a popular hobby for car enthusiasts They do have many moving parts and like their real life counterparts, can develop faults. Cars that won't move ...
  • How to Replace a Battery for a G Shock Watch
    The G-Shock series of watches is produced by Casio Most current G-Shock watches are powered using a built-in solar panel and do not require battery changes, but models ...
  • How to Calculate the Scale of Models
    A model's scale describes its size in relation to its real-life subject and takes the ratio form 1:[number] The first number of the ratio is always "1." The second ...
  • How to Charge 12V Batteries in Parallel
    Batteries may be wired in parallel or in series Two 12-volt batteries wired in parallel continue to produce 12 volts, but the capacity doubles. Two 12-volt batteries wired in ...
  • How to Restore Dead 6 Volt Golf Cart Batteries
    Golf-cart batteries are similar in design to car batteries, but are called deep-cycle lead-acid batteries Batteries used in golf carts need to produce constant voltage and ...
  • How to Make Battery Powered LED Lights
    Light emitting diodes (LEDs) produce a subtle lighting effect They use very little energy and operate under low voltage power, so a battery is an effective means of powering ...
  • How to Make Our Own Smoke Oil for Model Trains
    Model train collectors strive to make their model train sets look as realistic as possible by painting them the colors of real-life trains, adding different cars to their ...
  • How to Make Your Own LCR Dice Game
    LCR is a game played with three dice, three players and a dozen or so poker chips Each has the letter L, C or R (representing left, center and right) printed on one side. ...
  • How to Test a Varistor
    A varistor is an electronic component that protects expensive devices from harmful power surges, much like a shock absorber For example if there is a power surge, the ...
  • Things to Do With a Lawnmower Engine
    Archimedes once famously said: "Give me a lever long enough, and a prop strong enough, I can single-handed move the world" Small engines are like Archimedes' lever, ...
  • How to Bind a Spektrum DX6i
    The Spektrum DX6i is a radio transmitter used for remote controlled vehicles that communicates with a receiver, such as the Spektrum AR series, to give specific control of ...
  • Instructions for Cobra Walkie Talkies
    The portable, handheld, two-way radio is a communication device that works by sending and receiving messages with another radio on the same frequency The two-way radio is ...
  • How to Troubleshoot a Boat Tachometer
    A boat owner running a boat without a tachometer handicaps himself significantly This small instrument dial, which details the revolutions per minute of the engine's ...
  • How to Make a Toy Train Track Suspended From a Ceiling
    Many toy train collectors and model railroad enthusiasts lack the space needed in a basement or garage to build a permanent layout for running their trains Even a compact, ...
  • How to Wire a Dayton Electric Motor
    Dayton manufactures an extensive range of alternating and direct current electric motors Although wiring the peripheral accessories --- such as speed controllers, fuses and ...
  • How to Install a Winch on a Polaris Sportsman
    Your Polaris Sportsman is a very capable off-road vehicle Its lightweight, four-wheel drive system and aggressive tires make it almost unstoppable. For those few times you ...
  • How to Use Digital Multimeter
    If you are working on electronics you will need to know how to use a digital multimeter The digital multimeter is one of the most useful tools for measuring, testing, and ...
  • How to Troubleshoot an Electric Train Set
    It's great to see your model trains running around the track, but if they suddenly stop, tip over or can't get started, you will have to troubleshoot the problem Electrical ...
  • How to Build Train Table
    The first mass-produced model train was made by Marklin in 1891 and since that time the hobby has grown to include millions of fans, including musicians Rod Stewart and Neil ...
  • How to Make a Lemon-Powered Light Bulb
    A lemon-powered light bulb is a great science project or even a great green solution for camping or power outages The acid in a lemon causes a chemical reaction when metals ...
  • How to Test a Bridge Rectifier
    Bridge rectifiers are used to convert AC power from the wall outlet into DC power; rectifiers are common in consumer electronics that require DC power Internally, a bridge ...
  • Step-by-Step Guide to Building Your Own RC Cars
    Designing, crafting and racing remote controlled (RC) cars has been a passion of hobbyists for some time While many aspiring RC engineers are content to purchase and assemble ...
  • How to Use a GDT-11 Multimeter
    The GDT-11 is an entry level multimeter used for basic electronics testing The GDT-11 is a 5-function, 18-range multimeter. It can be used for testing everything from home ...