Blk. On wht scale; 120-0-120 rpm; 144x144mm
A tachometer using solid state and/or vacuum tube circuitry.
NSN 5910-01-505-4719
NSN 5910-01-139-4383
NSN 6620-00-190-8109
NSN 5915-01-472-2089
NSN 4140-00-218-3579
NSN 2925-00-555-4578
NSN 6105-01-440-8407
NSN 5905-01-063-6881
NSN 7035-01-222-0136
NSN 5915-01-535-7478
NSN 6320-00-538-2132
NSN 5925-00-462-7481