13 exercises to help you learn or teach electricity or electronics. Features random problem generation, extensive graphics, context sensitive help, and instant scoring.
http://www.wssh.net/~wattsup/audio/dcchal21.zip
Can't remember OHM's Law - here you go.
http://www.wssh.net/~wattsup/audio/ohms.zip
http://www.opamplabs.com/rfc.htm
http://download.uni-hd.de/ftp/pub/cica/win3/misc/spec150f.zip
using an R-2R ladder
http://margo.student.utwente.nl/el/micros/80xx/sine8051.zip
Thermal Analysis of electronic systems.
http://www.flomerics.com/
Electronic Mail for GSM Cell Phones using SMS.
http://download.uni-hd.de/ftp/pub/cica/win3/demo/cmaildem.exe
samples data from a sound card or addressable analog-to-digital (ADC) port, and plots out the spectral features of the sampled waveform.
http://www.wssh.net/~wattsup/audio/mf12.zip