Re: [CAD_CAM_EDM_DRO] EDM question; light bulbs and resistors

There's few working EDM circuits around. The rc generators yes, but
here's something closer to a commercial supply.
http://cscott.net/Projects/FabClass/final/edesign1.html

or , google for Redline if you wanna buy a real generator
( generator... an EDM power supply )

btw the dynamic characteristic of the light bulb as resistor is interesting.
bulbs were often a cheap way to get a big watt resistor

regards
tomp


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