CM-1073 Automotive Tune-Up Meter

The Heathkit Model CM-1073 Automotive Tune-Up Meter is an instrument which will aid in automotive engine trouble-shooting and tune-up work. It is designed to be simple in operation and requires no set-up time. The instrument is actually three meters in one. It combines a distributor cam Dwell Meter, an electronic Tachometer, and a Direct Current Voltmeter in one package.

SPECIFICATIONS

Dwell Meter . . . . . . . . . . . . . . .            Four direct reading scales:

                                                                  8 cylinders -- 0 – 45 degrees*

                                                                  6 cylinders & 3 cylinders X2 -- 0 – 60 degrees*

                                                                  4 cylinders -- 0 – 90 degrees*

Tachometer . . . . . . . . . . . . . . .           Two ranges:

                                                                  Low RPM:      0 – 1500

                                                                  High RPM:     0 - 4500

Voltmeter . . . . . . . . . . . . . . . . .           Direct reading scale, 0 – 20 volts DC

Power Requirements . . . . . . . .            Approximate average current 10 mA

Meter . . . . . . . . . . . . . . . . . . . . .         4-1/2”, 1 mA, 100 degrees movement

Dimensions (overall) . . . . . . . .            9-3/8” wide, 5-3/8” high, 9” deep (including handle)

Net Weight . . . . . . . . . . . . . . . .           2-1/2 lbs

NOTE: . . . . . . . . . . . . . . . . . . . .           * +/- 3% of full scale