DIY Projects

HOW TO – The Magic Phone, Part 2

HOW TO – The Magic Phone, Part 2

MagicHere’s part 2 of Fabienne Serriere’s great rotary phone to cell phone project “This week we bring you Part 2 of The Magic Phone How-To: The Circuit. The Magic Phone is a project where both a DECT compatible wireless home phone and a GSM cellphone are placed inside an old rotary phone. In Part 1 of the How-To, we showed you how to reverse engineer the matrix on a phone circuit.” Link.

HOW TO -Bluetooth stereo in the car

HOW TO -Bluetooth stereo in the car

No RcaChris writes “Considering how many people bought the HP Bluetooth stereo headphones and got disappointed when the headband snapped, I thought that it was time to do something useful with the ‘broken’ headphone. We’ll take you through all steps of dismantling the Bluetooth receiver and building it into a nice mouse housing with 12v in and line out. And as the device keeps its battery, you can also use this as a portable Bluetooth stereo receiver and plug in you high quality headphones or even connect it to your stereo at home.” Link.

HOW TO – Make a Joule thief

HOW TO – Make a Joule thief

Joule8“In the November 1999 issue of EPE (Everyday Practical Electronics), a small and intriguing circuit was published in the Ingenuity Unlimited section by Z. Kaparnik. It was a very small implementation of a typical transformer feedback single transistor invertor. The transformer was a standard ferrite bead with two windings wound on it and the circuit was using the high voltage pulse generated when the transistor turns off to light an LED from a single 1.5V battery. This page has two variations on the original design to use the simple circuit in a useful manner.” Link.

Make 3D parts…Big Blue Saw

Make 3D parts…Big Blue Saw

Cad-1Big Blue Saw is a new site that lets you create parts out of metal or plastic. You use your favorite CAD program to design a part, then upload the design to their site to get a rendered 3D image, and a quote. From the site: “Big Blue Saw is a new concept which brings together the Internet with modern computer controlled rapid manufacturing. With Big Blue Saw, takes a design you have made on your computer, then turns that design into a objects using state of the art robotic machine tools. Your parts are delivered right to your door.” Link.