3340 VCO / Eurorack / PCB and Front Panel / DIY / Synth Module / Analog

The 3340 VCO Eurorack PCB and Front Panel Kit is a DIY voltage controlled oscillator designed for Eurorack format systems. This version of the kit includes the PCB and front panel only, allowing builders to source their own AS3340 IC and other necessary components.

Key Features

• Eurorack PCB and front panel kit only
• Supports Square, Triangle, Ramp, and Sine waveform outputs
• Hard Sync and Soft Sync inputs
• Linear Frequency Modulation and accurate 1V/octave tracking
• External CV control for pulse width modulation (PWM) (0 to +5V)
• 10HP Eurorack format

Modulation & Sound Design

The 3340 VCO offers a wide sonic range, from aggressive, harmonically rich tones to smooth and stable waveforms. With multiple sync options, linear FM, and precise pitch control, this Eurorack VCO design is well suited for complex modulation and expressive patching within modular synth systems.

DIY Build & Front Panel

This DIY Eurorack VCO PCB and front panel kit is intended for intermediate to experienced builders. The PCB is clearly labeled to assist with assembly and troubleshooting. The included front panel is made from durable PCB material and screen printed by hand, providing a distinctive and professional appearance for your finished module.

Please note: The AS3340/CEM3340 IC and other electronic components are not included in this kit.

Technical Specifications

• Format: Eurorack
• Width: 10HP
• Current Draw: +12V: 15mA, −12V: 15mA
• Depth: 16mm