If you have ever thought about building your own audio amplifier why not go old school and build a tube amp! Have a look at a well documented K-502 Tube Amplifier Kit construction process. The end result is a fine looking piece of equipment. “With the K-502 tube amplifier kit is a piece of pine to mount your finished amp, but it’s more fun to put it in a box.
Have a look at this Autonomous Sentry Gun that was built for the Defconbots competition. The site has lots of good documentation of the build. (Article mirror) More videos after the jump. “The electronics for this project are going to be relatively simple as well. To control the three servos (pan + tilt + firing), we are going to use the Pololu 8-channel servo controller. Normally we might use
Check out this Youscope Oscilloscope Graphics Demo More impressive when you learn that a 15 year old made the demo! “A demo using an oscilloscope to display something. It was third in assembly 2007 shortfilm compo, and won altparty’s most original entry prize. The oscilloscope is connected to PC soundcard and is in X/Y-mode, with right channel connected to X and left to Y input.” Via: Make
If you like robotics and PIC microcontroller projects like I do this PIC Robot Centipede is sure to tickle your fancy. The project uses the cool Centipede Robot. Video after the jump. “I ordered a bunch of PIC programming materials at the start of summer break to learn more about embedded development and generally play around with them. For my first sizeable PIC project I decided to replace the brain
Doktor Andy has developed a method of using a cheap print server as a network controlled switch. Video after the jump. “One day it hit me. I wanted to connect my coffee-machine to the internet. and my television…and my desk light… There are different approaches. One of the most stupid ones was to stuff a relais-board into my pc and….greeaaat idea..absolutely….”sorry, I cannot cook coffee because I first have to
I have a box of old hardware such as floppy drives, hard drives for projects just like this Floppy-Drive Solar Tracking Unit. Some people look at old hardware like this as trash, I see it as a goldmine of great parts. “This is still pretty much a work-in-progress, but I did manage to create a successful heliostat (sun tracker) from the above TEAC model FD-235HF 3.5″ floppy drive. This procedure
Ronald Dekker put together an LED clock using a PIC 16F84 microcontroller. Some people would wonder why a $5.00 clock from the store couldn’t be used. It could be, but where would the fun be in that? “The 16F84 processor used here is a little bit out dated and no longer in production. I used it because of the simple fact that I had it lying around. The more modern
