A basic instruction for electronic enthusiasts. I use an RGB LED and a 510 ohm resistor as I may change from 6 to 9 volts later, but with my LEDs i could go as low as 330 ohms. I sacrifice some brightness for the sake of longer life. To choose your resistor, the value in ohms = voltage of your batteries or power supply / (as in divided by) the amperage that your LED needs to run.
This video shows you how to use a Heavy Duty battery load tester to test and inspect the remaining voltage in a battery.
This video explains how to diagnose a cranking circuit with a voltmeter by doing voltage drop testing.
This instructional video will show you how to make one of those cool lightning globes with about $5.00 worth of parts.WARNING This makes use of some very high voltage. It could be potentially lethal, especially if you are standing in a puddle of water. Watch this video tutorial and learn how to build a lightning globe.
When Samsung announced its new Super Fast Charging 2.0 system was based on USB PD, the industry rejoiced. By using an open standard, Galaxy users could pick from hundreds of third-party chargers in addition to first-party options from Samsung. Trouble is, this never came to fruition.
Lightning is scary and powerful, yet when harnessed correctly, it can become a beautiful pattern for hand-crafted wooden furniture. Muchd like Zeus in ancient mythology, Canadian Woodworks is harnessing the power and beauty of lightning, but they're doing it for aesthetic purposes.
In a previous project, I showed how to build an electrical Jacob's ladder using an old microwave oven transformer (MOT). In this project, I modified the secondary coil on the MOT, which converts it from a high voltage/low current device into a low voltage/high current metal melter!
A CNC router machine is probably the most useful tool a hobbyist can own, but the price for a CNC machine on the market is way more than the average hobbyist is willing to spend. You can build your own CNC with very basic tools, little knowledge of machinery, mechanics, or electronics, but be warned, these machines are inherently dangerous, so wear the proper protection and use common sense. At the very least, read the instructions and precautions on every tool you use.
In this clip, you'll learn how to use the VSN plug-in to encrypt email in Microsoft Outlook. It's easy! So easy, in fact, that this helpful how-to can present a complete overview of the app in just over five minutes. For more information, including detailed, step-by-step instructions, take a look.
This educational safety video is geared toward public and private utility workers and linemen who need to remove pole tops while dealing with high-voltage electrical cables and electrical insulators. It discusses the proper pole topping removal procedure and demonstrates effective procedures for removal.
Watch this science video tutorial from Nurd Rage on how to restore silver with electrochemistry. You can restore old silver with aluminum foil or a battery by simple electrochemistry.
To determine what is causing your windshield wipers to malfunction and not work, it is important to investigate the wiper motor and switch to determine if either is causing the problem.
The transistor is the most basic and important part of electronics, allowing small changes in voltage to turn things on and off. On, off. 0, 1. There's electronics. The grandaddy of them all is the N channel MOSFET, the most important transistor. This video will teach you how the MOSFET works and how to build some example circuits. This video is an absolute must-watch if you are interested in electronics at all.
Samimy is at it again. And this time, his ingenuity has tackled a clever way to take something old and broken and restore it to something new and useful. What are we talking about? Modding a broken hard drive and some busted cell phones into a useful rechargeable USB / solar-powered light, which also acts as a portable mobile charger.
The XBox 360 does not cool itself very well. If you're going to take it apart and mod it, you probably want to increase your fan speed by connecting it to the 12v part of the motherboard so it will spin faster and cool better. But you don't need 12v all the time right? It's very loud. Maybe you want to be able to choose between the stock 5v and 12v speeds depending on what you're doing? That's the best way. This video will show you how to make a switch attached to you fan that will allow you ...
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 electrical circuits: a simple circuit, a series circuit, and finally a parallel circuit.
Outdoor lighting is an important part of your landscape. It's serves multiple purposes, but wouldn't you want to make sure you're getting the right lights, for both daytime and nighttime use? Lowe's has the answers to help you plan and install outdoor lighting in your yard.
Whether you have to move into your car or you want to, there are some bases you need to cover. This Howcast guide demonstrates how to live out of your car. This is also helpful for cross country trips.
The Buchla Electric Music Box is a system developed for people who are looking to control a lot of aspects of their sound at the same time. The color-coded connections make it easy for users to distinguish what is controlling different elements. The system is already set up for use with computers and lets you control the voltage of all musical parameters. You can configure it to have a variety of applications. This video will show you to patch a Buchla 200.
Turn yourself into an electromagnetism maestro with one of the simplest motors known to man—the homopolar motor. It's the "simplest motor" because of its absent polarity change. The magnetic field does not change the direction or strength. It consists of only three parts; copper wire, round magnet and battery. It produces really low voltages, which means there's no real practical application for this motor, but it sure is fun to make! Try your hands at the homopolar motor—watch the video and ...
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.
This video tutorial is in the Home & Garden category which will show you how to use a multimeter to check for continuity, measure resistance and voltage and many more values. Multimeters are like the electrical engineer's Swiss army knife. Multimeters can be of digital or analog types. Before using the multimeter, make sure there is continuity between the two probes. When you connect the two probes with each other, it will beep indicating that there is continuity and then you can go ahead. To...
There are so many pieces that make up a car nowadays and it's important to know how it works and how to replace it. In this tutorial, you'll find out how to replace a distributor in an Acura Integra. If you don't know, a distributor is a device in the ignition system that routes voltage from the ignition to the spark plugs that help start the vehicle.
Steve of Element Tattoo Supply demonstrates how to set up a tattooing power supply, specifically the Silver Bullet model. It has a voltage switch on the back. If in the US, set the power supply to the 115-volt setting. Outside the US, switch to the 220 volt setting. There are two power plugs in front for tattooing equipment (such as a foot pedal), and a dial for adjusting the power. The relative power is displayed on a LED display.
An emergency battery charger for your mobile phone comes in handy, but it's not the ultimate solution; once it's dead it's useless (what a waste). If you want to really get off the metaphorical grid, you can follow the steps in this video to construct a more robust circuit that will not only bail you out of an inconvenient situation but also recharge in between uses. The simple addition of a low voltage solar panel and rechargeable batteries makes this possible. Enjoy!
After learning that you'll need to spend at least $74 on a special charger and a USB Type-C Lightning cable to enable fast charging on the new iPhone X and iPhone 8 models, you may be wondering why you can't just use the standard Lightning cable. While we can't answer why Apple didn't include the USB-C cable in the box with their new phones, we can explain why you need USB-C to enable fast charging.
In this video we learn how to use an electric tester to test wires. You will first need to purchase a voltage tester that runs on double a batteries. When you press it the end will turn green and you are ready to use it. Test it out by pushing it into a plug you know works and see if it turns red and starts to beep. If you own a home or are renovating this can help you out a lot if you don't have switches around. You can place the tester on a wire to find out if it's on and then become safer ...
The first thing you need to get is a multimeter this will help you test it. There might be a function on the meter that will give you the amount of voltage in that particular area. Then you have to put foil tape on all of the inside of the guitar to test it. You need to get two wires from the meter and then put them both on the foil tape on the guitar. If you don't hear a beep then you add more tape in that area where there is no activity. You can also test this on the ground.
This video is from the Dummies video series. The video will describe the process of replacing a standard light switch with a dimmer switch. First you must pick a dimmer switch that has the capacity to control the light fixture you would like to dim. Add up the wattages of all light bulbs in the fixture and make sure it is less than the rated capacity of your dimmer switch. Next turn off the power to the existing switch from the breaker panel and test with a voltage meter. You will then remove...
Richpin demonstrates how to test an alternator with a standard multimeter. First make sure that the vehicle's battery is fully charged. Take the negative lead of the multimeter and put it on the negative post of the battery. Place the positive lead of the meter on the positive lead of the battery. Set the meter to DC voltage using the 20 scale and read the display to ensure the battery is fully charged. Next start up the vehicle and see what the alternator is producing. The display should now...
This video describes the process of tuning a tattoo machine. The video starts by explaining the different parts of the tattoo gun. The presenter shows the different settings for the contact screw. For doing outlines the contact screw should have a gap the width of a dime. If you are filling a tattoo in with shading, then adjust the gap to the width of a nickel. The presenter then hooks up the tattoo gun to the power supply and adjusts the voltage to eight volts.
This how to video shows you how to test electrical receptacles. The video covers 5 simple test rules. The first test is to simply attach an electrical device to the socket. The video also suggests the use of market product testers and even voltage testers. This video is perfect for people who are having electrical problems or are just beginning to learn how to take care and maintain their own home. The video is about a minuet and a half long.
Want to learn how to harvest the sun? Just watch this science experiment video to see how to convert sunlight into hydrogen fuel. It's simple and environmentally friendly.
Scientists know that bacteria create their own energy, get nutrients to run their cellular processes, and multiply. But, bacteria haven't been shown to respond to external mechanical stimulation or signals in a way that's similar to how our bodies respond to touch, until now.
A lot of my hacks use salvaged parts from an old microwave, with the microwave oven transformer (MOT) being the most useful component.
You've made it far, Hawke. 'Demands of the Qun' is the final quest in Act 2 of Dragon Age 2. HThis eight-video series will walk you through the entire quest, with knowledgeable commentary on strategy and tactics that should teach you everything you want to know. You should also check out the written version of the walkthrough here for further tips and support.
Here is an educational video for ART (Advanced Robotic Technology) Plasma customers. The HDP Plasma SX Profile Cutter is designed for heavy duty manufacturing environments where power, precision, speed, quality low cost, productivity, and durability are demanded by business owners. See in these sixteen videos how it works, from the inside out, and another video on what it actually is.
If your old outlet has become so loose that a cord barely stays in place, it's time to change it. It's not just an annoyance—it's a hazard. Learn how to replace an electrical outlet with this instructional video from Howcast.
In this article, I'll be explaining the basics of how microcontrollers work, physically and virtually. First off, microcontrollers are no simple thing, so don't be discouraged if you find it mind-boggling! The world of microcontrollers is fascinating, engaging, and an awesome hobby; it never gets boring. I'll be focusing more on I/O and analog based microcontrollers, such as those running Arduino, and using Atmel chips as examples (these are most commonly available, and easy to program).
For most automotive applications a battery needs to supply a lot of current for a short period of time to turn over the engine and get the car started. With the engine running, the car's alternator produces all the power the car needs. Thin plates inside a starting battery increase the surface area and produce this relative burst of energy. Thicker plates in a deep cycle battery provide a steady amount of current over a long period of time. Deep cycle batteries excel in reserve capacity (RC),...
