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M8805/110-7239
T4-0174 EXCEPT
The Commercial license preparation manual from Kershner’s The Flight Manuals series
250BUSH W/POS SHFT
MS25089-3BR
Model 1790 Tachometer Tester | 115VAC, RPM Readout P7-381245 M8805/110-7239The Model 1790 Tachometer Tester is used for testing and calibration of electrical and mechanical tachometer generators and indicators. A high quality DC motor is coupled directly to a 1 4 inch square hole drive (AN Pad). This tachometer tester output can be converted to a wide variety of adapters and different tachometer interfaces. The motor drive control circuit uses SCR components and an open loop system for an economical solution to speed
