Dual Analogue VCO

BES004

This is a dual voltage controlled oscillator in eurorack format made by Box Emission Systems, is based on Mark Verbose's schematic for the Buchla 258 module but uses components which are still in production. It features both square and sawtooth oscillators, which each can be shaped into a sinewave. Its modulation options are fm, exponential fm, V/oct and the waveshaper can be voltage controlled. There are coarse and fine tune controls for the pitch of each oscillator.

https://www.boxemissionssystems.com/besmodules.html