Simple synth DIY

This page is intended as a list of simple but useful components that can be built for a modular synth.

If you're new to DIY electronics, please read the Synthesizer do it yourself page first.

This list of modules is intended to be -agnostic (so, can be built for Eurorack, 4U, 5U etc.)

Passive mult
Probably the easiest module to possibly build, all you need is some jacks, some wire, and a soldering iron. This module allows you to split a signal to be sent to multiple destinations. Passive mults are not suitable for V/octave CV control, because the voltage may drop when split, due to varying impedances in the destinations'

Schematics

 * simply wire all jack tips together, and all barrels together. More complex designs can use switched jacks to split multiples into smaller sub-groups.
 * AI syntheis have a schematic for a splittable passive multiple, as well as full PCB-based kits available.