Hacks, Mods & Circuitry: Page 20

This video tutorial will tell you how to make your own circuit boards for guitar effects. There are hundreds of great gadgets out there and a lot of the good ones don't come in a ready-to-build kit, so this video teaches you how to make your own circuit board. This method uses acids that etch copper so follow the safety instructions.

This two part video shows you how to build a Bedini motor. If you get bored of the endless ranting about the motor in part one, jump to Part 2 where they start building the bedini circuit.

If you are a photographer and are handy with a screwdriver and electrical tape, this is a really cool project to do. Basically, you "Frankenstein" a camera, taking a camera apart and rebuilding it with different lenses and the like, which makes for really cool photo effects.

Want a heads up next time that annoyingly chirpy coworker is heading over for some annoyingly chirpy chitchat? Rig up this little system and you'll never be caught off-guard again.

You will never be late to school again once you begin using this small yet super powerful water alarm clock. Rather than just ringing like most alarm clocks do, this little baby will not turn off until all its buttons are pressed, a process which requires diving your head underwater. Fun, right?

Keeping secrets out of the wrong hands warrants desperate measures—or maybe just sensical. If you have a secret, the best way to protect it is with a code—and the best way to transfer that secret message is via an electronic telegraph system. This video will show you how to make your own homemade electronic telegraph machine, so that you can send those encrypted Morse code messages to your friends without fear of prosecution.

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...

During World War II, GIs in the field built really amazing simple radios to listen to. These were made with materials that they could get their hands on and were small enough to carry around in a big pocket. You can modify this design if you want to set it up so that it's tuneable too! To see all the plans, go to makezine.com/podcast!

Make a lighter with one or two AA batteries and simple tiny wire!!! This is a fantastic homemade electrical lighter for any situation. You'll need two AA batteries, a push switch, a battery holder, wire, solder, soldering iron, electrical tape, crimper, and scissors for this cool electrical lighter, for your cigarettes, and such.

This step by step guide shows you how to convert an HD-DVD to Blu-ray that you can either put on a blu-ray disc or multiple DVDs. This can then be played back on your... More? Blu-ray player including the PS3. No loss of quality, no reencoding. No more HD-DVD exclusives because they can be put on blu-ray.

This is a Wired Magazine Geek Dad production. Make your own UFO at home with this hover craft. You need a leaf blower and some ingenuity.

This video shows us how to hack a video camcorder. He shows VideoJug users how to take a one time use video camcorder, and learn to hack it so you can use it again and again, saving you money!

Learn how to build your own pedal for the video game Rock Band for the Playstation 2 (PS2) and XBox 360.

Learn how to make a magnetic LED throwie. This cool light will stick to anything magnetic.

Team Cynergy presents step by step instructions on how to program an electronics kit to use a laser as motion detector and fire a paintball gun with the sensor is triggered.

Why settle for static lighting when you can bring on the big guns? Learn how to make a Christmas lights controller so your lights blink. Happy holidays!

Okay, this is one of the coolest eco-friendly projects we've ever seen. If weaving plastic bags into a reusable tote bag is not your thing, then maybe this is. Check out the video to learn how to build a paper turntable made entirely out of reused materials.

Learn how to take care of business when your copier or scanner breaks down.

How to make a wi-fi booster.

Kevin Rose in a segment from "The Screen Savers" showing how to overclock a 6$ toothbrush to work like a 100$ toothbrush. very cool!

Learn how to get free electricity from your home telephone line just by watching this video. Save money on your power bill, and hack into the electricity coming out of the phone jack. The phone company doesn't monitor electricity usage, so you can probably get away with this con. Check out this video tutorial and learn how to tap into the electrical energy source in your phone line.

This video will show you how to make a lemon battery. You use a copper penny and a zinc coated nail to create a circuit.

Watch how you can inflate condoms and make them into dancing decorations that blink to the beat of your party music. Pretty clever if you can figure out what supplies he's using.

Hack your voicemail or answering machine with special information tones. Check this out.

This tutorial shows you how to make a picture frame using a Mattel Juicebox media player.

Before I built the mechanics for my laser cutter I was planning on using the etch a sketch since the pulleys where already there. I accidentally cut the wires while taking it apart, so I made it from scratch (much bigger too). But I figured I'd post this in case you want a small laser cutter and need to learn how to take apart an etch a sketch. It was a bit tricky. The tought part was trying to take off the case. What you need to do is to pry the red off of the black, not the other way around.

In this video series, watch as accountant Joseph Salazar teaches how to operate an accounting calculator. Get tips on how to calculate sales tax, how calculate finance charges, and how to find the installment buying amount. Use these step by step online tutorials to continue your accounting career.

This video gives you a basic understanding of how to use Radio Frequency Identification (RFID) and text to speech modules. Learn how to integrate your home PC with external modules for security and fun!

In this how-to video series, learn how to solder from soldering expert Ken Orlich. Ken has been soldering for over twenty years and will teach you what he knows about soldering, including what tools you need for soldering, how to save money soldering, and soldering safety tips.

Mr.G shows you an experiment in which you can create pulse DC current (which mimicks AC current) from a nine-volt battery.

Have your ever wanted to build a bird feeder? Do you want to know what types of birds live in your neighborhood? If the answer to one of these questions is yes, then this video is for you. Bre Pettis will teach you how to make two different types of bird feeders and then how to attach a webcam to the feeders so you can watch the birds.

For those of you who don't know, a brain machine is a machine that controls your brain waves. This particular brain machine puts your brain in a meditative state and then brings you back out via brain waves.

Use magnetism, electricity, and a rodent to create a night light. If you have mice, or would not mind buying some, this project can be completely relatively quickly. Go and harness the power of rodents!

Using a computer screen and a sheet of glass you too can create a hologram! As this video shows, simply use the correct monitor (depending on what you want to do) and a piece of glass positioned appropriately to create the holographic image.

Learn in this video how to make sodium acetate (hot ice experiment)with household item,and how to make heater pad re-usable more than 100time,give 45*c for 1 hour.

Kipkay demonstrates how to make a spaceship out of a floppy disc and first snap apart the floppy disc. Save the metal door and the inside hub, but also snip an area at the very back of the ship.

Watch as Bre Pettis teaches you how to make a hovercraft, bering-less motor, and dirigible all from materials found in your grocery store. This is a good rainy day project to do with your kids, as the most advanced tools needed are a hot glue gun and balloons.

This is a two part video. The first part of the video shows you a bunch of people playing shoverboard, a combination of hoverboards and shuffleboards. However, if you skip to a little less than halfway down the video you will see some of the process involved in creating hoverboards, the interesting part. Yet another fantastic time spent with Bre Pettis and Make Magazine.

This instructable aims to show you how to cut any type of disk to a desired shape. It is particularly useful in cutting down cheap 12cm DVD-+R 's into more expensive (can be up to 10 times more) 8cm DVD-+R disks. The technique shown here works with all disk types. The video below shows us cutting a music CD into a heart shape, and also illustrates the basics of cutting 12cm disks into 8cm ones. The actual cutting of a disk (and the guide) can be seen here:

Ham radios are a form of amateur radio that anyone can use. This is a great video series for anyone looking to connect with other random people through wireless means.