TWO_ROTATOR_CONTROL

Published:2009/6/25 22:52:00 Author:Jessie | From:SeekIC

Low-cost Alliance C-225 TV antenna rotator and Alliance K22A ro-tator with control box are used with single tran-sistorized-bridge control circuit. Rotators op-erate in tandem on same shaft to provide double torque for handling medium-size 20-meter amateur radio antennas. One arm of bridge is 520-ohm wirewound pot in which wiper position is proportional to heading. Artiole covers wiring and bench-testing of rotators．－F.E.Gehrke，Antenna Rotator for Medium-sized Beams,Ham Radio，May 1976、p48-51.



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