Month: August 2007

Repacking NiCd battery packs

Repacking NiCd battery packs

The amateur astronomy site Astromart has a short, informative piece on testing and repacking dead power tool NiCd battery packs. These packs are filled with “Sub C” cells. Taking apart a “dead” pack, you can test the individual cells and replace only the bad cells. Rebuilding NiCd Rechargable Battery Packs – Link Related: Cordless drills […]

Free penguins

Free penguins

Liz writes – If you love Linux you automatically love Tux, the cuddly mascot-slash-logo for the open source operating system. Just as the software is free to download and install as your computer’s desktop, the patterns for Tux can be downloaded so he can sit on your desktop next to your computer. The Free Penguin […]

Firefly PCB

Firefly PCB

John writes – The Firefly is a tube-based guitar amplifier popularized on ax84.com (a tube amp community and forum). The Firefly PCB was created so even the beginner to tube amps can succeed. The PCB is “open hardware” meaning that the PCB file is free to download and modify as well. Otherwise the PCB’s are […]