With the microwave oven transformer (M.O.T.) salvaged in a previous project, a simple electrical circuit can be rigged to get high voltage arcs to fly outward and upward along a "V" shaped spark gap. You can look, but don't touch! These arcs of plasma are lethal enough to kil ...more
If you want an electrical circuit to send power to an object, like a light, you're going to need resistors. This video, part of an excellent series on basic electronics by Scotty, will teach you how to make a circuit with resistors and an LED light, a real function piece of el ...more
The Solar Schoolhouse presents this video tutorial on how to use the Solar Cell Classroom Set. The purpose of this set is to give students hands on experience making electricity using sunlight. See what's inside the set, and then see how to wire three different types of electr ...more
Electricity can be conducted through a variety of unexpected mediums, including Jell-O, lemons and potatoes. Learn more about electric circuit experiments in this free science experiment video from a professional audio engineer and instrument builder. Part 1 of 16 - How to Do ...more
The continuity test is one of the least well-known but useful functions on a multi-meter. It allow you to determine whether a fuse works by touching the contacts to it, which allows you to diagnose all sorts of electrical problems. This video will show you how continuity tests ...more
Measuring the amperage, or number of amps, in an electrical circuit requires a tool called a multi-meter. They are somewhat difficult to use, but fortunately for you this video explains in great detail how multi-meters work and what you need to do to ensure that they work. The ...more
One of the basics of electronics is knowing how an electrical current works. For this video, you will need a 1.2V battery, a lightbulb, and 2 copper wires. First, take the wires and attach one end of each wire to opposite sides of the battery. Have a friend hold the wires ther ...more
Tim Carter, of Ask the Builder, demonstrates how to wire up a 3-way switch in your house, into an electrical circuit, for your lighting needs.
Ask the Builder host, Tim Carter, demonstrates how to wire up a 4-way switch, and where to place a 4-way switch in an electrical circuit in your home.
One of the creepiest musical instruments ever is undoubtedly the theremin, a device originating from the early 20s that emits eerie sounds with a just a wave of the hand. If you've seen the original movie The Day the Earth Stood Still, you know what I mean—freakishly creepy. P ...more
If you are planning to add any new outlets, lights or appliances, it is helpful to have a map (or schematic drawing) of your electrical circuits. This will help you determine if you can tap into an existing circuit or if you need to run a new circuit from the breaker panel. In ...more
This video introduces the concept of an electric circuit and how electrons flow through the wire. It describes the difference between an open and closed circuit, and the importance of continuity.
This year, there's no need to waste time and energy stringing colorful Christmas lights all over your home and yard. All you need is the Circuit Marker from AgIC, a Japanese technology company, and you're ready to deck the halls. Video: . The marker, along with special circuit ...more