An audio frequency generator for the frequency range of 25 Hz to 25 kHz. The generator produces three different waveforms: sinusoidal, triangular (sawtooth), and rectangular curves. It is used in the laboratory for precise settings. The generator is equipped with separate stand controls for each waveform, allowing it to be set to deliver exactly the same signals for each waveform simultaneously. Operating voltage: 24 VAC. Board size: 65 x 120 mm. Required transformer: 24 VAC, 1 A.