Erica Synths Polivoks VCO

Your Price:$199.99

In Stock

Part Number:ES-VCO-C

Quantity

The fully assembled module.

The core of the VCO is borrowed from the famous Russian synth Polivoks VCO and in exponential converter we use the original matched transistor IC that was used in Polivoks.

Features

Triangle, saw and pulse wave outputs
Manually adjustable and CV controlled pulse width
Great tracking across 8 octaves
Exponential FM input with attenuator
Synchronization input
Octave switch – 5 octaves
Skiff-friendly design

We have significantly updated schematics:

Introduced +-10V regulators for greater stability of operation,
Adjusted signal amplitudes to match requirements of contemporary modular synths and made all output signals available simultaneously,
Redesigned CV inputs to accept positive CV signals,
Introduced PWM circuit with manual and voltage controlled pulse width,
Introduced synchronization input, so you can sync the VCO to other VCOs.

This is a comparably complex DIY project for experienced builders. We do not recommend this for beginners and ones without proper soldering and testing equipment.

Technical specifications:

Audio output amplitude	10Vptp
Octave range	C0 – C8
Panel width	12HP
Module depth	35mm
Power consumption	34mA@+12V, 36mA@-12V

See the visual BOM for a complete list of the parts included.

Download the bill of materials with Mouser numbers, the assembly guide and the schematic from the Github page. Use the .zip file, NOT the links to ericasynths.lv at the bottom of the page!