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Class D Audio Amplifier Tutorial

Class D Audio Amplifier Tutorial

Afrotechmods shows us how a Class D Audio Amplifier works and how to build one. A TPA3122 is a class D amplifier on a chip. There are no external power components needed since class D amplifiers use mosfets for switching and thus the heat dissipation is low enough that it can be squished into the DIP package with no heatsinking needed.

Published: June 9th, 2014

Submersible Thruster

Submersible Thruster

If you are looking to design some underwater propulsion Dane from Transistor Man has completed a well documented Submersible Thruster build to get some pointers from.

Published: June 9th, 2014

Printable Self Assembling Lamp

Printable Self Assembling Lamp

   This Printable Self Assembling Lamp is an interesting concept. It starts out as a flat sheet and folds up into a box with an overhead light. The light turns on using a touch sensitive area.

Published: June 9th, 2014

Arduino Bullet Casing Sorting Machine

Arduino Bullet Casing Sorting Machine

Having your technology save you time is great. NYC CNC doesnt have to sort his spent bullet casings any more since he has built this Arduino Sorting Machine.

Published: June 9th, 2014

Etching a PCB using Different Methods

Etching a PCB using Different Methods

Ben Heck attempts three different methods for making a prototype PCB. The methods are the toner transfer method, the laser etch method and the good old hand drawn method.

Published: May 30th, 2014

DIY CNC Pendant

DIY CNC Pendant

Our friend Bob Davis built a DIY CNC Pendant that allows him to control his CNC machine without spending big dollars on a commercial type. His version makes for a nice quick build since it uses parts that you probably already have in your junk bin.

Published: May 22nd, 2014

Electric Go Cart Built from Scratch

Electric Go Cart Built from Scratch

Ben Rothschild sent in details of his latest build, it is an Electric Go Cart Built from Scratch. It has a top speed of 22 MPH and a range of 5 miles.

Published: May 22nd, 2014

Adware Driving Me Crazy

Adware Driving Me Crazy

These days people who design circuits usually do so on a computer, the days of pencil and paper are almost all but gone. The issue is that your computer is probably working harder on useless background tasks than it is running your design software.

Published: May 17th, 2014

DIY Boombox

DIY Boombox

David Watts has made a DIY Boombox which is made with mostly off the shelf pieces that have been hacked together. Some of the features the boombox has is line in, bluetooth input, radio, spectrum analizer and a partially working pong game.

Published: May 15th, 2014

Bruce in a Box Augmented Reality Project  Cornell University ECE 5760

Bruce in a Box Augmented Reality Project Cornell University ECE 5760

Julie Wang developed the Bruce in a Box Augmented Reality Project for her ECE 5760 final project. This looks like a fun project, to see where the name comes from watch the video at 3:00.

Published: May 15th, 2014


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