PURPOSE OF THE EQUIPMENT The Wavetek Model 750 Phase Meter has been designed to accurately measure the phase angle between any two ac signals {with amplitudes between 1 mV and 300 V) within the 10 Hz to 2 MHz range. A precision wide band bench instrument, the Model 750 uses a unique circuit design which permits accurate phase angle measurements with input signals having high even harmonic distortion. A fourdigit readout is used to display, in degrees and tenths of degrees, the phase angle being measured. Two ranges, 0°/360° and —180°/+180°, assure continuous phase data without discontinuity at 0 and 180 degrees. High impedance differential inputs are used; and a dc OUTPUT —10 mV/DEG is provided for use in recording phase angle measurements, or as a control signal for phase lock loops or servo systems. The automatic operation of this instrument eliminates the need for amplitude matching, frequency tuning, and output filtering, resulting in true hands-off operation. 1.2 GENERAL PHYSICAL DESCRIPTION Weighing approximately 9 pounds (4.1 kg) net and 13 pounds (5.9 kg) when shipped, the Model 750 is 8V2 inches {21,6 cm) wide, 5 1/4 inches (13.7 cm) high, and 11 inches {27.9 cm) deep. Housed in a compact, rugged sized, portable case, the Model 750 is normally shipped with a 10-foot, 3-wire, detachable line cord and one copy of this instruction manual.