Doepfer A-188-9 Highspeed VCO – MHz-range Oscillator for Extreme Modulation
The Doepfer A-188-9 is a voltage-controlled oscillator operating in the MHz range—far beyond traditional audio VCOs. It's not designed as a direct sound source, but rather as a tool for ultra-fast frequency or phase modulation, digital control signal generation, and experimental synthesis.

With precise CV tracking and multiple simultaneous waveform outputs, this module is excellent for advanced modulation scenarios, high-speed CV routing, or even unique control applications. It’s a go-to for sound designers and modular enthusiasts exploring the limits of modulation.

Key Features:

• Operates in the MHz frequency range

• Ultra-fast CV response and tracking

• Multiple simultaneous outputs

• Ideal for FM, phase modulation, and digital synthesis

• For experimental modular applications