Join Date: Feb 2004
Location: West Virginia
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Looks like my Sophomore electronics project. See, the professor put together a list of about 50 or so circuits we could build and he had a joke listing in the middle of it "death ray". My partner and I claimed that one on the list and went about making a death ray. Basically, we put a speaker out the end of a paper towel tube and attached it to a shoe box with a breadboard in it. LED's out the side would strobe in time with the 555 timer based frequency generator (basically played a sine wave exponential curve resetting every second or so). We even built an RF remote (basically just an RF diode that had a button connecting it to a battery and a light receiver on the death ray) to fire it off. World domination didn't pan out though, fair warning. Good times...
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