Electrical tachometer test set (NSN 6680-01-094-9373)
Special Features
Nain: tester, tachometer; this single speed simulator is a self contained hand held instrument which generates & radiates a signal the frequency of which is equal to that generated by a speed transducer; used to verify the proper operation of the ni tachometer systems on either the boeing 747 or the douglas dc-10 aircraft w/o the engines running
