Leoricksimon sent in his lab power supply project, we’ve covered a few here, but this is one of the best – “Make your own lab power supply complete with adjustable voltage with presetable constant current. Using single LM324 op amp and stripboard layout included.” – Link. Previous: Lab Power Supply & more – Link.
Jeff writes – “Here’s my first stab at an electric powered vehicle – A plastic Adriondack chair from Target, with headlights, keyed ignition, speed control in the pistol grips, foot pedal steering, under armrest neon lighting etc. Cruises the neighborhood at about 12mph. Surprisingly comfortable with aircraft (rudder) like steering footpegs.”
John writes – “Here’s how to add a wired remote control (like Pioneer SR) jacks to VCRs and DVD players that don’t have any.” – Link.
Alexei writes – “One day I was making a simple little elastic gun to shoot Lego blocks and I thought to myself, “it would be cooler if it had some kind of trigger.” The next thing I knew, I was involved in a competition with my own self – I tried to imagine the most […]
Alan writes – “What do you do when your hard drive dies or is so small it is no longer useful? Easy, rip it apart and make something cool out of it! Here are 5 ideas to get you started. See project VIDEOS and PICTURES. (Includes the never before seen Hard Drive Oscilloscope)” – Link.
Here’s a quick tool blurb we sent over to Kevin Kelly’s great Cool Tool blog – “The “Third Hand” is a low cost helper that has been an indispensable assistant for many of my projects in electronics. It holds circuit boards in place as you put in components, or if you need to solder delicate […]
Ian writes – “The goal of this project was to build an efficient Altoids tin iPod (firewire) charger that runs on 3 (rechargeable) ‘AA’ batteries. This project started out as a collaborative effort with Sky on PCB design and construction, and I on circuit and firmware. As it is, this design will not work. It […]
