> > Here's an example that tests basic electronics knowlege: > > > > http://scantool.net/pub/electronics_test.pdf some more comments from a nitpicker... diodes: I don't know an anode from a cathode, I don't want to know and I don't need to know. I do know the band on the component is the bar in the symbol, that's all I need. AC amplifier: no aplification factor is mentioned, so I'd offer either a single capacitor between in put and output (factor ~1) or between output and ground (factor ~0). Now that I think about it, no frequency range is mentioned either, so I would specify 0 pF capacitors. but I still think such a test can be a good starting point for a talk. just don't treat the answers as if it were an exam. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist