[sdiy] OT: oscilloscopes on ebay and acoustics applets links

[rkmoore at memphis.edu]

Hi everyone,

If anyone is currently looking for an oscilloscope, there is a fellow on
ebay selling several 100MHz multi-channel scopes and all have prices
around $30 ending tomorrow.  I just bought a Kikusui 5 channel 100MHz
scope from him and it was packed VERY well and received in good shape.

http://search.ebay.com/_W0QQsassZufi_guyQQhtZ-1

Also, I found a page with some very nice acoustics Java applets to
simlate string vibration, membrane vibration, room resonance, and stereo
speaker placement.  They're fun to play with and make it easy to
visualize wave behavior.  A bunch of other physics and engineering
visualizations as well.

http://www.falstad.com/mathphysics.html

Enjoy!

Richard Moore