TM 55-4920-328-13 Table  1-3.  Leading Particulars of Test Trailer Assembly - Continued. Figure and Index No. Speed Monitor Chassis Assembly 2A1 (cont) Impedance 100k ohms (min) Input Voltage 12v ac rms (max) Slope positive. Display nixie tube Gate Times (K Factor) 0001 to 9,999 msec Rate Measuring Accuracy ±count with self-test capability Frequency Standard 2 mhz oscillator, quartz crystal, binary divided Sampling Rate 0.2 sec to 5.0 sec (optional infinite hold) 11, 16, Figure Fuel Flow/Oil Consumption 1-23 Chassis Assembly 2A2 Width 19.00 in. Height 8.70 in. Depth 13.50 in. Weight 30 lb (approx) Input Power Requirements 117v ac, 60 Hz Input Range 2 to 10k Hz Sensitivity 0.01 volt rms sine wave Impedance 100k ohms (min) Input Voltage 12v ac rms (max) Slope positive Display nixie tube Gate Times (K Factor) 0001 to 9,999 msec Rate Measuring Accuracy ±count with self-test capability Frequency Standard 2 mhz oscillator, quartz crystal, 21, Figure Multi-Channel Vibration Meter 2A3 1-23 Width 19.00 in. Height 8.75 in. Depth 13.00 in. Weight Input Voltage 117v ac, 60 Hz Filter Networks Each 110 Hz and 200 Hz Channel External Transducer 10k ohms (nominal) Impedance Input Impedance 10k ohms 1-79