Authentic All-analog Vintage VCO for Eurorack An authentic re-creation of the dual-core voltage-controlled oscillator from a legendary 1970s modular synthesizer, the Behringer 1004 features discrete transistor circuitry to deliver lush, vintage tones. With five available waveforms — sine, triangle, pulse, ramp, and square — you have a variety of voices from which to choose. Plus, each waveform is accompanied by a 3-way toggle switch for turning the waveform on or off or inverting the signal; the waveforms are summed together for creating ultra-complex waveshapes. For even more detailed sound shaping, the Behringer 1004 includes CV-controllable pulse width modulation length and depth and dual frequency modulation. Synthesists at GearNuts especially appreciate the 1004 dual parallel outputs for feeding the signal into two separate chains of Eurorack devices. If you're spacing out your first Eurorack rig and are looking for an affordable, all-analog VCO, you'll be astounded by this value-packed module. And