- vk.com wall-196103799_88Inside the Big Trak - Robot Room www.robotroom.com.
- fursuit.livejournal.com 4838619.htmlThanks for sharing this link!!!
- ok.ru video/651984242091Determine the color, brightness, and polarity of an LED before soldering it into a circuit. For schematics and photos, see http://robotroom.com/LED-Tester-Pro-1.html.
- HAD posted a story about breaking open McDonald's toys to get to the goodies inside and use them for other projects. Link