Irwin Ea0030 Signal Generator 
A versatile Signal Generator and Power Amplifier that will find many uses in the laboratory. The outputs, sine, square, triangle and pulse are available at frequencies from 0.1Hz up to 100Khz. The power amplifier is capable of driving a vibration generator and loudspeaker. The power amplifier is capable of being used separately. A superb unit at a competitive price. Irwin EA 0030 Signal Generator.