Electronics

  • 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 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 Use Digital Multimeter
    A brief tutorial on using a digital multimeter to measure resistance, DC current and voltage using a battery and resistor
  • 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 Build Tattoo Machine Coils
    Wrapped coils, made from insulated copper wire and iron, are the electromagnetic backbone of any tattoo gun The coils come in three different sizes, 8, 10 and 12, which ...
  • 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 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 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 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 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 ...
  • 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 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 ...
  • 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 Use a GDT-11 Multimeter
    Quick instructions on how to use the Gardner Bender GDT-11 digital multimeter, a handheld unit that measures electrical resistance, current and voltage
  • 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 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 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 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 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 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 Build a Remote Control Plane
    Building your own remote control plane is a great activity to occupy your time There are hundreds of resources available for people who are interested in building an RC ...
  • 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 ...
  • 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 Make a Homemade Plasma Cutter Using an Arc Welder
    Plasma cutters are becoming the tool of choice for cutting metal They're quick, clean and easy, requiring less skill to operate than an oxyacetylene torch. However, if you ...
  • 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 Check or Test for a Short Circuit With a Multimeter
    Step-by-step instructions on how to check for short circuits with a multimeter, either digital or analog
  • 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 ...
  • 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 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 ...