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Old 12-12-2015, 12:54 PM
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jeffyjeep jeffyjeep is offline
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Join Date: Jan 2009
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Come to think of it, I don't recall EVER using a commercial launch controller. I've always made my own.

I made this one c. 25 years ago and I still use it. It has (2) 9V batteries wired in parallel for the firing voltage. Every component is from Radio Shack (except the labels.)
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