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American Sci & Surplus is selling 7500v power supplies for $7.75. These
are *AC*, but are sold as "Ionizers" with a needle strip. Perhaps they are
current-limited, but I can't really tell from the description. It's on
the back page of the new catalog, #28701.
Build two of them into a box, each with a 20KV diode in series, for a
pos-neg electrostatic power supply? At these prices you could put one at
every student station in the lab.
((((((((((((((((((((( ( ( ( ( (O) ) ) ) ) )))))))))))))))))))))
William J. Beaty SCIENCE HOBBYIST website
billb@eskimo.com http://www.amasci.com
EE/programmer/sci-exhibits science projects, tesla, weird science
Seattle, WA 206-781-3320 freenrg-L taoshum-L vortex-L webhead-L