Sperry Marine 2863-AB Speed Log Preamplifier Rev-AA
The Sperry Marine 2863-AB Speed Log Preamplifier Rev-AA is a marine-grade signal conditioning module designed for Sperry Marine NAVIKNOT Speed Log Systems. It amplifies and converts signals from the electromagnetic speed log transducer before transmitting accurate vessel speed data to the electronics unit and bridge navigation systems. Professionally tested and reconditioned units are available from WAVETECH MARITIME.
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