Hacks Mods & Circuitry: Page 9

Before there was digital music and fancy computers and music software, people use to employ the power of the electric color organ (now more commonly known as the "light organ") to add some visuals in sync with their music. MAKE shows you how to build your own sound-to-like circuit— your very own light organ!

The phase-shift oscillator is one of the most common electronic parts, used in all sorts of mostly noise-making devices. If you like electrical engineering and new a new project, watch this video to learn how to make a phase-shift oscillator out of a single transistor, resistors, and capacitors.

For most synth players the goal is to acquire legendary pieces of 1980's gear with great amounts of money or luck. Why bother when you can make your own direct digital synthesizer (DDS) at home? Watch this video to learn how to make a DDS out of common electrical parts that will make a phat Theramin sound.

Electrical engineering is a math-heavy business, and you're certainly not alone if you're studying it and having trouble with the math. Watch this video for a very cogent explanation of a simplified method for calculating resistor dividers in a circuit.

Now that most computers have internal webcams in them, what are you going to do with that external webcam eating up precious desktop space? Kipkay shows you the perfect hack— the "Super SpyScope".

EL wire is known as the Currency of Burning Man, and it's potential to create beautiful light in all sorts of settings is amazing. If you're tired of buying it and want to stock up on some DIY EL wire (which is more in the spirit of Burning Man anyway right?) watch this video to learn how to twist enamel and bare wire together to make your EL wire.

Jonathan Guberman of Site 3 coLaboratory hackerspace in Toronto has created an Arduino-controlled mechanical typewriter that can type on its own, detect what is being typed on it, and run text-based interactive fiction games such as the classic (and to most, all but forgotten) Zork.

Now available for download in the official App Store, Skyfire is a mobile web browser that converts Flash video to iPhone-friendly HTML5 on the fly. Because Apple has heretofore not supported Flash video, that's kind of a big deal! In this iPhone owner's guide, we learn how to use and navigate the various features of functions of the Skyfire smart browser. For all of the details, and to get started watching Flash video clips on your own iPhone 4, 3G or 3GS, iPad, iPod Touch or other iOS device,...

In this tutorial, we learn how to solder for cheap. Start out by forming the wire to get it ready to solder. The trick here is to create some tension between the two ends, do this by going back and forth hitting the wires. Now, grab a torch and start to flex the wire while holding it in front of the open flame. After this, grab some of the flux you keep in a bottle and apply it to the piece. Continue to apply heat to the wire until it turns cherry red, then apply the solder with the connection....

Instructables member mark-mark creates a beautiful effect with just a tin can lantern and an LED. It's as simple as it sounds: punch a decorative pattern into a tin can and insert your LED rig. Catch the impressive result here.

Another media player bites the dust.  First, we saw the extinction of the phonograph and gramophone.  Then came the fall of eight-track tapes.  Even modern record players became more and more obsolete, with DJs switching over to the world of digital music.  And today— the end of cassette players!  What's next?  Compact discs?

This video tutorial is in the Electronics category which will show you how to make a Beetlebot from your parts bin. The Beetlebot project can be found in Make Volume 12. You will need a couple of small motors, 2 momentary switches, 2 AA battery holders, a piece of metal, a small bead, 2 paper clips, heat ring tubing and a couple of connectors. Cut off two pieces of the tubing and using a soldering iron melt them over the ends of the motors. Hot glue the 2 momentary switches at an angle with the...

Jogging at night is risky, but with these LED sneakers, the odds of getting hit are drastically reduced. Creator Will Cruz wants you to be safe, so he has generously shared full instructions for making your own light up kicks.

Rockets can be made from things you can buy at any electronics store - like a can of compressed air. You can even buy your own kit, or assemble your own by following the instructions in this video. Once you've built the chassis, just insert a can of compressed air and let it ride!

Is your Droid always running out of power, and a charger isn't always convenient? Start with a hand cranked flashlight, then wire it up so you can charge your phone by hand! Great for pulling your dying phone out of emergencies.

Let your creativity out by making your own sidewalk chalk, which you can color however you want. You'll need plaster of paris, a mixing bowl, powdered tempura paint, warm water, wax paper and tubular molds. Once you mix everything and colored with the paint, set your mold, let them dry and then start drawing!

You can make a laser diode driver extremely inexpensively - the materials in this tutorial cost less than three dollars in total. Find out what to buy, and then this tutorial shows you how to assemble your purchases for a laser diode. Awesome!

You can construct your own burning red laser very easily and very cheaply. All you need are a soldering iron, Phillips head screwdriver, an LPC-815 laser diode, and a RKCSTR driver. Once you have everything together, follow this video to build a burning red laser.

Perfboard, or perforated board, is a simple board with evenly spaced holes and lined with metal which can be soldered on one side. The holes let you set up a board with circuits and wires as you need them for your own project. This tutorial shows you everything you need to know to build electronics on your own perfboard.

You can certainly use Skype to make free Internet phone calls through your iPod Touch, though the microphone/headphone combo headset sold by Apple is thirty dollars. Make one for a fraction of that cost using a headphone splitter and the mod process outlined in this video.