Electronics

  • 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 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 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 ...
  • Troubleshooting Ignition Problems on a Mercury Outboard
    Mercury Marine is an international motor boat company based in Lake Forest, Illinois, providing motors for private, commercial and government craft Mercury produces an ...
  • How to Build a Cheap Floating Dock
    Floating docks can costs thousands of dollars A cheaper option is to make your dock at home using materials found at a lumber yard or big box retailer. A floating dock can be ...
  • 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 Do Bumper Cars Work?
    Bumper cars rely on electricity to run, which may be pulled from an overhead power supply or from built-in, rechargeable gel cell batteries In an overhead power ...
  • How to Tell the Difference in Gel, AGM or Standard Batteries
    Lead acid batteries are used throughout the world in cars and boats Lead acid battery construction now includes both gel and AGM (Absorbed Glass Mat) technologies as well as ...
  • 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 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 ...
  • 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 Identify Circuit Board Components
    All electronic equipment is made up of a number of component parts that work together, modifying and managing current and voltage in a variety of different ways Most ...
  • 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 ...
  • 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 ...
  • How to Display Model Airplanes From Your Ceiling
    After the time and patience that goes into building a model airplane, you'll want to display the work so others can see it This is simple when the model is a car or other ...
  • How to Build a Model Roller Coaster
    Building a model roller coaster is a great, hands-on way to learn about physics and centrifugal force Whether you plan to build a roller coaster for fun or for learning, you ...
  • 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 Ruin an Engine
    There are actions you can take, whether deliberate or inadvertent, that can lead to ruining an internal combustion engine
  • 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 Build a Perpetual Magnetic Generator
    The search for making a perpetual magnetic generator is not a new one. The inventor, Peter Peregrinus, created what is known to be the earliest "magnet motor ...
  • 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 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 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, ...
  • 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 ...
  • DIY Night Vision Rifle Scope
    Shooting a rifle accurately at a target requires being able to see it You can make a do-it-yourself (DIY) night vision rifle scope that will let you see what you are shooting ...
  • How to Tune a CB Antenna Without an SWR Meter
    In 1958, the Federal Communications Commission allocated a block of frequencies in the High Frequency range for Citizens Band (CB) radio The commercial equipment available ...
  • 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 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 ...
  • How to Repair Model Train Locomotives
    You still see them in stores during the Christmas holiday, wending their way on tabletops through snow-laden model towns But electric trains, and especially the locomotives ...
  • How to Wire an Old Lionel Train Set
    Hobbyists and model railroad fans have been collecting and "playing" with Lionel trains since 1900 All electric train layouts require attachment to a power source ...