MODEL MB-1

The MB-1 is a low impedance, low voltage circuit tester. It indicates continuity by emitting a low frequency tone when the circuit path is normal. In semiconductor circuits, the MB-1 can indicate a normal junction and will detect opens, shorts and failing devices. The MB-1 can detect shorted shields and windings in transformers. In Diodes, the MB-1 can detect opens and marginal junctions. In cable runs, the MB-1 can indicate the type of shorts by sensing the length of the closed circuit. Cable runs in excess of 50 feet is acceptable to the MB-1. All detection is done by sensing the tested circuit's resistance and is indicated by a variable tone from the MB-1. It is powered by a single 1.5 VDC battery. The tip-to-tip current is less than 20ma in a dead short. A red and black set of rubberized test leads, 36" long, are provided as standard lengths. Other lengths are available by special orders. Weight is 12 ounces.

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