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Theodore Johnson

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Issue Article Description
Fall 2003 Mousebot - (How to Extract Quadrature Encoders From Computer Mice) Theodore Johnson details how to make precisely controlled tabletop robots using the guts of old computer mice.
Spring 2003 Servo Speed Control Theodore Johnson has another approach for controlling the speed of an R/C servo.
Nov/Dec 2001 How to build a spinning sign Theodore Johnson explains how he built a spinning sign, including some really interesting ideas about rotating power connections.