The Latest on Hacks Mods & Circuitry: Page 18

In this soldering tip video brought to you by BEST, Inc. Norman Mier certified master instructor for Soldering Skills demonstrates removal of plated through-hole flat leads.

In this soldering tip video brought to you by BEST, Inc. Bob Wettermann demonstrates the repair of plated through-hole printed circuit boards.

In this soldering tip video brought to you by BEST, Inc. Norman Mier demonstrates the installation and soldering of an 0805 chip component using a point-to-point soldering technique.

In this soldering tip video brought to you by BEST, Inc. Norman Mier demonstrates the installation & soldering of SOIC14 gull wing lead component using a point-to-point soldering technique.

In this soldering tip video brought to you by BEST, Inc. Norman Mier explains how to prepare through-hole components for installation using lead-free solder.

In this soldering tip video brought to you by BEST, Inc. Norman Mier demonstrates the through-hole preparation pliers method with lead-free solder.

In this soldering tip video brought to you by BEST, Inc. Norman Mier demonstrates how to utilize a lead-free solder in the installation and soldering of an SOIC20 gull wing leading component using a multi-lead technique.

In this soldering tip video brought to you by BEST, Inc. Norman Mier demonstrates the installation and soldering of an 0603 chip component using a point-to-point lead-free soldering technique.

In this soldering tip video brought to you by BEST, Inc. Norman Mier demonstrates a point-to-point technique on a QFP 100 using a lead-free solder.

In this soldering tip video brought to you by BEST, Inc. Norman Mier demonstrates the lead-free multi-lead soldering technique.

In this soldering tip video brought to you by BEST, Inc. Norman Mier demonstrates how to install and solder properly a through hole component into a circuit board.

In this soldering tip video brought to you by BEST, Inc. Norman Mier demonstrates the preparation of lead-free gold cup soldering.

A step-by-step how-to video from grooveshark.com explaining how to make your own circuit board or PCB. It's a simple, but long process for copper etching a printed circuit board, so pay attention and pause when needed.

How to make your own thin metal parts, photo etched parts, SMD stencil.

In this project, using a 5GHZ processor, you'll see how to use liquid nitrogen to cool you computer down, giving magnificent speeds to boost your PC's productivity.

Watch as Kipkay from MAKE Magazine shows you how to make something really cool for the office, with parts from RadioShack. One of the original practical jokes is the gravity activated subwoofer simulator, or better known as the Whoopee Cushion. See how to make a high tech prank... the Joke-A-Tron. This electronic prank device will beep and beep to keep your enemies on their toes.

Make your very own hydrogen (and oxygen) generator with a 9V battery, copper wire, and baking soda (or salt). Why? Who knows. Make sure to check your connections. For more information on this hack, including detailed, step-by-step instructions on assembling your own HHO generator, watch this how-to video.

Here's how to remove the RFID chip and antenna from a London Oyster travelcard. You can then put it in anything you want. You need a jar and acetone.

Reversing the image on a CRT computer monitor can be a great joke to play on your coworker, if you have the time to play a prank like this. If you have a lot of spare time on your hands, and love to see people miserable, then this is perfect for you. This also works with television sets.

In this video, Make Magazine shows you how to make your own printed circuit board (PCB) using a laserjet printer.

Have a damaged trace on a PCB? Then see how to repair it.

Learn to instantly chill your favorite drink... from 80 degrees to 30 in less then 20 seconds.

A stethoscope, often considered the symbol of a doctor's profession, but also used by safe-crackers and auto mechanics to hear sounds that otherwise couldn't be heard. Well, it's time to make a high-tech electronic spy stethoscope with Kip Kay in this gadget video tutorial, for only twenty-five bucks! You can hear and record heartbeats with this spy gadget, or even listen through walls!

This demonstrates how to wire a 555 timer chip for Pulse Width Modulation. Items used: solderless breadboard, 555 chip, 510 ohm resistor, 100k ohm variable resistor, 1 RGB LED at 20-25ma, wires, and 9v battery. And those vertical lines are what i mean in terms of what you can see only on the camera. You can see the led light of course without the camera.

Finding a film projector for those who still shoot film, or those who still house film can be tough. They're either sparce or extremely expensive. In this six part tutorial, learn how to make your own DIY homemade film projector for your home without shelling out tons of cash. This presentation is hosted by Dan Mikesell at Pratt Institute.

This is the edited version of the video that I shoot while preparing the silicone rubber layer for my homemade multitouch display. The original video is nearly two hours long so I speed up it and edited with some useful informations as titles. I hope it may help anyone who's going to prepare a similar compliant surface.

Xeni visits the offices of the Electronic Frontier Foundation and speaks with Jake Appelbaum and Bill Paul, two of the authors of a security research paper that shows how your computer's memory can be tricked into revealing data you thought was safely encrypted, and out of the reach of others.

A simple multitouch pad made from a plastic bag, some dyed water, and a camera.

Creating an electric, homopolar motor with junk from your drawer.

Check out this how-to guide on constructing a penny-stove. This video will take you through each small step of making the penny alcohol stove for camping or just for the garage.

This week, Bre Pettis teams up with Mitch Altman and George Shammas to make a little 3x3x3 cube made of little LED lights that you can program with any kind of animation that you like.

This video will give you shocking results. Find out how to make a couple of alterations using paper clips and a screwdriver to turn a disposable camera into a taser.

A video that shows how to convert an ordinary headphone into a mic.

Sweaty summer day by the computer? Office A/C broke? Watch this how-to video! You can make a simple USB fan using a compact disc, a USB cable, and a small fan motor. It's quick and easy! Don't suffer from the heat. Watch this video tutorial and with these circuitry tips, build a simple USB fan out of some old CDs.

Hand soldering a QFN component is almost impossible unless you have the right tools. Among these tools is the SchmartBoard|ez prototyping board. Here we hand solder a .5mm QFN component.

This method is good for replacing SMD chips without damaging other IC's. See how to desolder using a lighter.

This video is a detailed description of how to make an IR pen. It even shows a diagram and how it works!

A cool way to test a LED bulb emitter! Plug it in to your multimeter and see it light up. It's really cool!

This OzLabs video demonstrates how to build an LED sign using their flatheaded LED strips.

This tutorial illustrates how a wireless pinhole spy video camera can jam wireless internet or WiFi signals.