classic hacks

2822 Articles

Using VFDs As Amplifiers

December 1, 2008 by 14 Comments

tube_amp

[HP Friedrichs] sent us this cool writeup on how to use scrapped Vacuum Fluorescent Display tubes as amplifiers. For those unfamiliar, a VFD is a display device common to electronics.  Many have been replaced by LCD, but you can still find them in modern products. [Friedrichs] points out that his 2008 ford has a VFD for the multimedia display.

Since these units are basically tubes, he figured that you should be able to use them as a tube amp. After some testing, he found it to be quite adequate.  The project includes tons of background information on how tubes work, how VFDs work and how to utilize it for amplification. In the picture above, you can see him using one (middle) to amplify a home made radio (right).

Upgrade An Electric Lock Keypad

November 30, 2008 by 11 Comments

lock_buttons

[OldGrover] bought a Weiser electronic lock. Only 6 months after installing it, the keypad stopped working. Instead of just accepting this, [OldGrover] built a better button pad for his lock.  He decided to go with big push buttons instead of a similar to stock membrane system. After tracing out where the original buttons connected, he attached his new buttons and enclosure. Pretty simple really but it fixed the problem and kept the lock out of the landfill. Now, he has a unique looking keypad on his front door.

Make Your Own Holiday Lights

November 28, 2008 by No comments

lights

No matter what holiday you choose to acknowledge, you probably enjoy the thought of getting to put lights up everywhere. We know we do. Here are some instructions on how to make your own string of color changing lights. Sure, you can probably just buy a string of color changing lights for cheaper, but then you couldn’t arrange them however you want on the line, and you also wouldn’t get the satisfaction of doing it yourself.

Zap New Life Into Ni-Cads

November 27, 2008 by 18 Comments

nicad_zap

Apparently you can revive dead Ni-Cad batteries by zapping them with high voltage. Some people have used welders in the past, but many of us just don’t have access to one. This project shows you how to hack a disposable camera into a battery revival device. This could be very cost effective. A single regular AA battery could revive many Ni-Cads. Remember, this doesn’t charge them, just makes them able to be charged again.

Build A Portable NES

November 26, 2008 by 5 Comments

portable_nes

[1up] has posted his portable NES as an entry for the Sanyo Eneloop contest. We’ve seen some really cool portable builds, but this one has a complete step by step writeup of the process too. Many of these projects start with the little all in one devices that contain 99 games already. [1up] wanted to use original hardware so you could play any cartridge you could get. He used a complete NES and a portable PS1 screen. The total project cost was roughly $130, if you don’t include all the stuff he broke in the process.

Not only does he make it portable, but also points out easy ways to improve your experience. One example is to disable the lockout chip. This was an anti piracy precaution from Nintendo. If the cartridge doesn’t pass this, it won’t play. Often, games won’t pass due to something as simple dirty contact. He explains all of this and takes you through the process of disabling the chip so everything can run smoother.

He has it all encased in a clear box. Some people prefer a more professional finish, but we have to admit that seeing the guts is pretty cool.

Xbox 360 Arcade Controller

November 25, 2008 by 18 Comments

360_arcade

[weirdo] sent in this sweet Xbox 360 arcade controller project(translated). He really wanted an arcade controller for the new Mortal Kombat game. After noticing that the expensive retail arcade controllers were missing the trigger buttons, he decided to hack his own together. After dissecting the controller, he soldered in some break out boxes. This will allow him pretty easy reconfiguration. Wanting some additional customization, he added LEDs to the buttons. Most people add LEDs to the buttons, so that’s not a huge deal, but he also added one to the ball on the end of the joystick. That added touch almost makes us forget that this thing is housed in a pizza box. To be fair, he wants to refine the button layout for a while before he makes a final enclosure.

We covered a very similar project last year, but it has since disappeared from its original site. You may also remember the slick Wireless PS2 arcade controller from back in June.