In-line headphone amp
Here’s an inline headphone amp using a MAXIM MAX9725 surface mount chip and some smd capacitors. Feel free to make yours look prettier than this one. In-line headphone amplifier – [via] Link
Instructables
How To – Make a desk lamp from a scanner
This Instructable details how to turn a scanner lamp assembly into a tres geeky desk lamp. Scanner Parts – Desk Lamp – Link Related: Old scanner = light table – Link
HOW TO – Make an H-bridge
Randofo writes – An H-bridge is a type of circuit that you can use to get a reversible DC motor to spin both clockwise and counterclockwise. In other words, this circuit allows you to quickly reverse the direction a motor is spinning by using a switch or controller chip to change its direction. I’m going […]
HOW TO – Make a a wind-up headboard reading light
Peter writes – I love to read in bed. This is one of the true pleasures in my life, and I begin and end every day doing it. One day, I was reading an article about living off-the-grid, which seemed like a neat idea, but also a real stretch for a production home suburbanite like […]
Cobbling together broken solar panels
In this well-written how to, the builder shows you how he collects broken photovoltaic (PV) cells and panels (sold on the cheap at places like Electronic Goldmine and Silicon Solar) and then wires them up and re-cases them to create new PV panels. How to MAKE PV Solar Panels – Link
Kitchen tabletop letterpress
This Instructable shows how to use a small tabletop letterpress. The press is built with little more than plywood, long threaded rods, and a woodworker’s veneer press screw. Unfortunately, the maker didn’t actually take pics of the construction process (the Instructable shows the letter-pressing, not the building of the press itself), but things seem reasonably […]
HOW TO – Make a cardboard stand up of someone
Here are a few different ways to make a cardboard stand up of yourself. I had heard about a fellow who made ones of his kids and placed them near the end of his driveway to make speeding cars slow down, apparently it works, but the drivers complained – Link.
