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For sale is a Cleveland Machine Controls D41-17443C Control Board w/ Heatsink. Industrial control circuit board by Cleveland Machine Controls. Board marking: D41-17443C. Copyright dates on PCB: 1989, 1992. Features visible: large aluminum heatsink with power transistors, multiple blue trimmer pots (labels include WIDTH, TACH, FREQUENCY, GAIN, COMP, BAL), terminal strip with wire pigtails, relay, test points and connectors. Some jumpers/mods are present on the board. Condition: used. Dust, oxidation and discoloration on the heatsink, scratches, and signs of prior service. Untested; functionality unknown. Included: the single board with attached heatsink and wiring as shown. No other accessories. Assumption: likely used in industrial machine control/drive systems.