Moog Voyager Old School Mods Manual

About this manual

This manual provides instructions for two modifications to the Moog Voyager Old School synthesizer: a filter pole selector allowing choice between 1, 2, 3, or 4 poles, and a VCO1 PWM disable/enable mod to emulate sub-oscillator pulse width modulation without affecting other oscillators. The author, Don Solaris, details the theory and procedure for these mods while warning that opening the unit voids the warranty and assumes all risk.

What's inside

• Abstract
• Intro and Basics
• PWM Disable/Enable
• Filter Pole Selector
• Smoke coming out of machine?
• READ THIS FIRST!

Frequently asked questions

What is the purpose of the VCO1 PWM disable/enable modification?

This modification allows the user to disable PWM on VCO1 only, enabling the emulation of a sub-oscillator with a fixed waveform to maintain a stable low end.

What happens to the warranty if the user opens the Voyager to perform these modifications?

By opening the unit, the user loses the warranty and all associated rights, leaving them entirely responsible for any damage caused.

What specific type of rotary switch is recommended for the filter pole selector modification?

The manual recommends using a 2x4 contact rotary switch, which has two inputs and four outputs.