Calculations, formulas and diagrams for calculating and estimating self inductance of various structures.
http://home.san.rr.com/bushnell/self_inductance.htm
Electric and electronic circuit design calculations online: ohms law, impedance and reactance, resonant frequency, time delays.
http://www.cvs1.uklinux.net/calculators/index.html
Basic principles, ideas, concepts, laws, and formulas behind electronics.
http://www.electro-tech-online.com/viewforum.php?f=9
Describes commonly used forward-error-correction algorithms used in wireless communications. Provides a worked-out example and C-language simulation source code for a digital communications link using the algorithms.
http://pweb.netcom.com/~chip.f/Viterbi.html
transistors tutorials,
http://www.williamson-labs.com/480_xtor.htm
Describes how to build 3D plastic prototypes almost as easily as printing something on a sheet of paper.
http://www.howstuffworks.com/stereolith.htm
A very accurate and useful EXCEL psread sheet. Handy for TC coil use. And tips for Primary construction with copper tube.
http://members.aol.com/esondrmn/index.html
Basic introduction to a variety of electronics technology applications targeted for the layperson.
http://www.howstuffworks.com/category-electronics.htm