From the MAKE Flickr photo pool:
Member Garagemonkeysan brought a more lovable look and feel to the popular joule thief project. The seemingly depleted battery is held in place by 2 magnets - nice technique! He's also got a great instructable up as well.
Cat burglar joule thief on Flickr-Link
Cat burglar joule thief on Instructables -Link
Related:
Make a Joule Thief - Weekend Projects Video Podcast -Link
The Joule Thief -Link
Posted by Collin Cunningham |
Feb 1, 2008 02:00 PM
DIY Projects, Electronics |
Permalink
| Comments (3)
| Email This |
| Digg this!
Oldest comments listed first.
Subscribe to MAKE Magazine!
Subscribe today, save 42% and get web access to MAKE free. MAKE Digital Edition is available only to subscribers.
$34.95 / 1 year
(4 Quarterly Issues)
Check out all of the episodes of Make: television
 |
MAKE on Facebook Visit our Facebook page and become a fan of MAKE! |
 |
MAKE on Twitter Follow our MAKE tweets! |
 |
MAKE on Flickr Join our MAKE Flickr Pool! |
Why advertise on MAKE?
Read what folks are saying about us!
Click here to advertise on MAKE!
Gareth Branwyn
Senior Editor
Phillip Torrone
Senior Editor
| AIM | Twitter
Becky Stern
Associate Editor
| AIM | Twitter
Marc de Vinck
Contributing Writer
| AIM | Twitter
John Park
Contributing Writer
| Twitter
Sean Ragan
Contributing Writer
| Twitter
Matt Mets
Contributing Writer
| AIM | Twitter
Dale Dougherty
Editor & Publisher
| Twitter
Shawn Connally
Managing Editor
| Twitter
Goli Mohammadi
Associate Managing Editor
Kip Kay
Weekend Projects
| AIM | Twitter
Collin Cunningham
Contributing Writer
| AIM | Twitter
Adam Flaherty
Contributing Writer
| AIM | Twitter
More contributors: Mark Frauenfelder (Editor-in-Chief, MAKE magazine), Kipp Bradford (Technical Consultant/Writer), Chris Connors (Education), Diana Eng (Guest Author), Peter Horvath (Intern), Brian Jepson (O'Reilly Media), Robert Bruce Thompson (Science Room)
Weekend Project: Beetlebot
Simple robot from your parts bin that avoids obstacles. Thanks go to Jerome Demers for the original article in MAKE, Volume 12. To download the Beetlebot video, click here or subscribe in iTunes. Check out the complete Beetlebot article...
More...
www.flickr.com
|
www.flickr.com
|
Help | Write for MAKE | Contact Us | Subscribe | Advertise with Us | Privacy Policy| About MAKE | FAQ
© 2009 O'Reilly Media, Inc.
All trademarks and registered trademarks appearing on makezine.com are the property of their respective owners.
RSS
This is a comment for collin about his joule thief. Thats a nice lookin project. BUT, why all the parts? I have piddled with the circuit and low parts count was the keystone of the circuit. I put one togather out of parts I robbed from an old circuit board and wound the coil from telephone wire on a power supply toroid. And when I put it on a perf board it's smaller and pulls the same or a little less current. I'm not slamming ya, I just want to know what you know that I don't.
Reply to this comment
Question regarding the Joule Thief for anyone out there. Do they only work with blue or white LEDs, and if so why?
Reply to this comment
they are just the colors that are "in" right now, different leds need different voltages and mA but with the right resistor any should work
Reply to this comment