"The Model 200CD Wide Range Oscillator generate frequencies of excellent waveform in the subsonic, audio, and ultrasonic ranges. The Model 200CD includes new design features which result in still finer performance than previous Hewlett-Packard instruments. Special circuitry ensures an output voltage of low distortion and high stability with an output load impedance from zero ohms to open circuit. Usefulness of the oscillator has been extended by designing the 200CD output circuit so that the instrument may be operated balanced as well as unbalanced and by providing a 600-ohm impedance match." (hp, Manual 200CD, 1955-1971)

BRIEF SPECS

There is no need to talk much about the 200 series: timeproven design (see below) and simple operation form the workhorse in many labs. This one is a late (1977) in the green/beige colour scheme.