HONEYWELL DR300 旋钮, 有圈数计数器
Digital Readout Dail Type, 1/4 in. Diameter, 10 Turns, Dails
Digi-Dials are designed for multi-turn potentiometers. Removable knob exposes end of component shaft for precise phasing. Positive breaking action and large, highly readable numbers.The Clarostat power resistor decade is the essential tool in electronic and electrical design, testing and repair.for controlling known or unknown resistances.selected or determined under active operational conditions.