Special Features:

Form, fit, and funtion interchangeable with collins avionics model 356f-3 speaker amplifier, accepts differential and single - ended inputs. Low output distortion < 1 percent

Properties:

An electronic device whose audio frequency input signals control power from a source independant of the input signal and delivers audio frequency output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It operates at frequencies of 20 kilohertzs and below. It may or may not have signal switching capabilities.