The Solar 8850-1 High Power Sweep Generator provides audio power in a manually tuned or sweeping mode for four frequency bands covering 30 Hz to 100 KHz. Each band can be swept for one minute, or all bands can be swept in sequence for one minute. In the manual mode, a tuning knob controls the output frequency. Both the frequency in KHz and the output level in volts r.m.s. are continuously displayed on two digital meters on the panel.