Looks like he references this on ionpool.net http://www.ionpool.net/arcade/tech/octopus.pdf On Thu, 1 Mar 2007, John Robertson wrote:
At 9:13 AM -0800 3/1/07, kevin spears wrote:
I got a booklet and videotape a few years ago on how to build a "poor man's Huntron" using an X-Y oscilloscope, a small transformer, and a couple other odds-n-ends. I haven't built it yet to try it out. Does the Huntron do much more than what you could achieve with a simple homebrew kit?
Not as far as I could ever tell. The only advantage was you did not have to set up a kludge to the front of your 'scope.
I believe a search for "curve tracer for oscilloscope" will turn up instructions...
Yup: http://www.seattlerobotics.org/encoder/200304/VItracer.htm
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