Eurorack Power Supply DIY Kit/PCB +12V/-12V/+5V

A reliable linear power supply for Eurorack modular synthesizers. This DIY PSU provides the standard ±12V rails plus +5V, suitable for small to medium Eurorack systems. Designed for builders who want a clean, low-noise power solution with straightforward assembly.

The PSU delivers around 1A per rail (depending on input and cooling). An external 12V AC/AC wall wart (1–2A) is required and not included.

Key features

1. Linear dual-rail PSU: –12V / +12V / +5V
2. 16-pin IDC Eurorack power connector
3. Compact size: 115 × 65 mm
4. Through-hole components only – easy to build

The kit includes

1. All components required to assemble the PSU
2. 1A linear voltage regulators
3. Heat sinks
4. 5.5 mm / 2.1 mm barrel jack for AC input
5. 2-pin screw terminal for AC input

Notes

1. External 12V AC/AC wall wart (1–2A) needed
2. Technical details and assembly instructions: https://polykit.rocks/psu
3. Please note the product safety information
4. Assembled kits and PCBs are non-returnable