[CW] Regarding the slowing down of bugs......
Steve WD8DAS via CW
cw at mailman.qth.net
Sun Dec 21 19:41:45 EST 2014
Thanks for the insights regarding bugs and pendulums and vibrating arms. I was imagining that the forces of the arm and contact springs were taking the place of gravity in this horizontal situation, but that the idea of the pendulum still applied. The bug I modified as a kid had a scale stamped into the bar showing the speed for various positions of the weight, and it was marked slower the farther the weight as positioned out from the pivot, thus my assumption that it was indeed like a pendulum and it wanted a longer level arm to go slower. And when I extended the arm it indeed went slower.
Adding weight did slow it, but a lot of weight was required to only reduce speed a little bit, thus my conclusion that the dominant factor was length rather than mass. I also noted a lengthening of the dits with added weight, which was reinforced in my mind when I saw the idea of "weight" adjustments on electronic keyers. Apparently I built a whole system of fake-physics in my head to explain my observations.
Thank you.
Steve WD8DAS
sbjohnston at aol.com
http://www.wd8das.net/
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