Hacks, Mods & Circuitry Features

How To: Make a high-tech spy stethoscope

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!

How To: Make a Wi-Fi extender from Asian parabolic cookware

Want to boost your WiFi reception? Have an extra wok or parabolic collander? This video tutorial demonstrates a simple hack that will allow you to build an effective radio antenna that will significantly increase the gain of your WiFi signal. To replicate this hack at home, you'll need the following items: (a) a piece of parabolic cookware, (b) heavy tape, (c) a USB WiFi stick, (d) tin snips, and (5) a USB extension cable. For detailed instructions on building your own wireless signal extende...

How To: Repair or Replace Your Broken Headphone Jacks

If you haven't met a person that's broken a pair of headphones, you might need to get out more. No matter how expensive or cheap a pair of headphones are, the sound can get buggy, the wire can get cut, or the headphone jack itself can be broken or ripped off the cord. But instead of buying a new set of headphones or borrowing the ones from your cousin with the earwax problem, you can easily fix it yourself.

How To: Hack Smart Cards for satellite TVs

Notorious hacker Chris Tarnovsky opens his underground laboratory to WIRED, providing a peek into the world of satellite television smart-card hacking. This complicated process involves nail polish, a pin head and various acids -- so don't try this at home (unless you're Chris Tarnovsky)! Chances are you won't even know what's going on here, but that's not going to stop you from watching this video tutorial on how to reverse-engineer a satellite TV smart card, is it?

How To: Hack into live, public security cameras and web cams

In this Electronics video tutorial you will learn how to hack into live, public security cameras and web cams using Google without the owner even knowing this is happening. The video claims that there is nothing illegal about this. Type ‘inurl:/view/index.shtml’ in to Google search bar. IP addresses starting with numbers are those of cams. So, click those. You may need to install ‘active X’. Go ahead and install it. Click on any cam IP and you can view the picture in that cam. You can...

How To: Wire a car amplifier and subwoofer inside your house

This easy to follow silent and accurate video will guide you quickly and easily through what you'll need, (like a Power Supply, a sound system that has a Subwoofer Pre-output and a High Input adapter, which may already come with your amp.) First learn what colored wires should be connected to simulate your PC starting. Then connect the amp to the power supply to simulate the car Head-Unit starting. Once the power issues are handled, the video assists you with connecting your audio input. It i...

How To: Block RFID Signals, Build an RFID Reader Detector, and Make Custom RFID Tags

RFID chips are everywhere. They're in passports, credit cards, and tons of items you've bought in the last 5 years or so. Big retailers like Walmart started using tracking products with RFID as early as 2004, and today, they're used in everything from mobile payments to hospital record systems. Chances are, unless you're a hermit (in which case you wouldn't be reading this anyway), there's an RFID tag within a few feet of you. Photo by sridgway

How To: Cut and Sand Your Micro-SIM into a Nano-SIM Card for Your New iPhone 5

Planning on getting the iPhone 5, but want to keep your SIM card? The new nano-SIMs that manufacturers are adopting will be even smaller than the micro-SIMs that most of us currently use. It's fairly easy to cut a regular SIM down to a micro-SIM, but because the nano-SIM will be thinner as well as smaller than the micro, cutting it down to size will require a little more work. Photo by Tech Digest

How To: Make an Infrared Mask to Hide Your Face from Cameras

This how-to video shows how you can hack a standard baseball cap into a cool invisible IR mask to hide your face from cameras anywhere, and look perfectly normal to the human eye! You have to admire a technically accomplished hacker. Now don't go out a rob a bank or anything. Watch this video tutorial and learn how to camera-proof your face with a creepy infrared mask.

How To: Hack a WiFi USB Adapter for Better Reception

This video tutorial demonstrates a simple hack for improving the WiFi reception of a USB adapter. To replicate this hack yourself, you'll need the following materials: (1) a WiFi USB adapter, (2) a USB extension cable, (3) a metal strainer, and (4) a pair of scissors. For detailed, step-by-step instructions on improving your WiFi adapter's signal levels, watch this how-to video.

How To: Make a cheap heads-up display (HUD)

It may be intended as a toy, but this gizmo can be hacked for more than just watching a remote-controlled car's video spy cam. This HUD (heads-up display) comes with the Wild Planet Spy Gear Video Car, but it's said that you can purchase the video headset separately. And it's not really a HUD, because you can't see through the video images, but it's close enough to be handy for all sorts of things, like computers, iPods, robots, wireless cameras, and gaming. Who wouldn't like to Call of Duty ...

How To: Increase the power of a 5mw green laser pointer

In this tutorial, we learn how to increase the power of a 5mw green laser pointer. First, you will need to gather the parts you will need, which include a vise, the laser, a soldering iron, and a block of wood. After this, cut the block of wood in half and then put your laser pointer in the middle. Pull and twist so the module comes out, then pull the foam protector off. Don't lose any small parts that come out. Next, unscrew the silver cap and then put on your new laser module. Replace all p...

How To: Turn your doorbell into a guard dog alarm

This video shows you how to make a security device out of a door bell. The concept is that most thefts happen when people are away from home. To make sure of this the thief rings the door bell to make sure that nobody is home, if nobody answers then they will break in. A lot of people have dogs and alarm systems which will scare off the thieves, but this alarm system combines both. To make this devise you have to buy a speaker system that connects to your door bell. When the door bell rings i...

How To: Run USB through the phone lines

Take a look at this instructional video and learn how to run a USB cable through existing phone cords. You'll need two phone jacks, a USB extender, and a phone cord. Although dual jacks are featured in this video tutorial, single jacks are preferred. The process is fairly simple, what you need to do is open up the jack and cut the USB extender in half. Strip to the multicolored wires and match up the the wires with the opened phone jack's, all except for the white wire which will go to the ye...

How To: Unlock Your Front Door Without Keys Using This DIY Keyfob Entry System

Keys are on the way out. They're clunky, take up precious space, and slow you down when you have tons of identical-looking gold ones on your keyring. Everything we can open with keys can now also be opened with wireless technology in just a click—so why use keys anymore? Sure, you can pay hundreds of dollars for an automated lock system on your house—but why do that when you can build it yourself!