NASA Ohms Law Tutorial
http://www.lerc.nasa.gov/Other_Groups/K-12/Sample_Projects/Ohms_Law/ohmslaw.html
Ohms law and power law calculator.
http://www.angelfire.com/pa/baconbacon/page2.html
Here's a clever design idea lifted from the pages of Electronic Design. Stephen Woodward has designed a circuit that allows one pot to adjust two channels.
http://www.web-ee.com/Schematics/DualChannelPot/DualChannelPot.htm
http://www.hifi-remote.com/wasser/index.shtml
http://www.discovercircuits.com/PDF-FILES/4013cir.pdf
http://www.edn.com/archives/1996/071896/15di6.htm
Part 1 ? Practical Antennas, Part 2 ? Antenna Measurement, Part 3 ?Computer Analysis of Antennas.
http://www.qsl.net/n1bwt/contents.htm
A performance comparison. ASK wins.
http://www.rfm.com/corp/appdata/ook.pdf
An index of OOPic powered robots on the web.
http://www.oopic.com/robots.htm
alkaline 9V batteries are ideal for many portable, handheld applications, this circuit generates a bipolar supply of 5V and ?2.3 to ?4V using a precision 5V reference and one op amp as a supply splitter
http://www.edn.com/archives/1997/071797/15di_05.htm