Wiki

• The Art of Trouble Shooting book combines theory and practice, you’ll gain insight into the principles that underlie the diagnosis and repair of all machines.
• Awesome software running on old hardware is an online, collaborative list of projects that attempt to compile or install “recent” software on old hardware, thus extending the life span of theses products.
• Battery University is a free educational website that offers both theoretical and practical battery information to engineers, educators, media, students and battery users alike, including advice on maximising rechargeable battery life and safe charging and use.
• Electroboom! makes safety fun(ny) – definitely DO NOT try this at home.
• BigCliveDotCom has a YouTube channel in which he tears down and explains the working of numerous different electrical and electronic devices.
• EEVblog is another highly instructive YouTube channel, perhaps a little more technical, often discussing unusual devices.
• Raising the dead: Can a regular person repair a damaged hard drive? is a very interesting article, debunking some of the myths on repairing hard drives. Also check the comments streams on this on Slashdot article. (Note: hard drives are sealed against dust for a good reason - assume that one that has been opened may fail at any time.)
• Oldversion.com is very useful when new softwares or their upgrades are too heavy or don’t work at all on an old pc (or implement new features you don’t like).