BEHRINGER 921B OSCILLATOR. Analog oscillator module for Eurorack. It has Frequency and Range controls to set the frequency range in semitones and octaves, 4 independent audio outputs for each of the 4 waveforms: sine, triangular, sawtooth and rectangular, Sync-in input with Weak/Strong switch to synchronize the oscillator with another external module, inputs for parallel connection to other oscillators that can also be switched to external
I/O.