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Distortion · Aion FX

Aion FX Helios

The Aion FX Helios is a DIY PCB kit for building a distortion pedal based on the ProCo RAT circuit, a classic 1978 design that built upon earlier distortion technology.

  • 9V DC · center −
  • 10 mA
  • Analog
  • Mono
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Used (asking)
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The rundown

Highlights

  • DIY PCB kit format for self-assembly
  • Based on the ProCo RAT distortion circuit
  • Powered by 9V DC with 10 mA draw, battery-compatible
  • Compact size at 66 x 126.2 mm
  • Mono operation with standard analog circuitry

Best for

Builders and players who want to construct their own distortion pedal based on a historically significant circuit design.

Quick facts

Power
9V DC
Current draw
10 mA
Polarity
Center negative
Dimensions
66 × 126.2 mm
Stereo
No
MIDI
No
Status
In production

Where to buy Aion FX Helios

We have no current prices for this pedal yet.

Frequently asked questions

What power supply does the Helios use?

The Aion FX Helios runs on 9V DC with a 10 mA current draw and uses a center-negative connector, and it is compatible with battery power.

What are the dimensions of this pedal?

The Helios measures 66 x 126.2 mm.

Is this a complete pedal or a kit?

The Helios is a DIY PCB kit for self-assembly rather than a finished pedal.

Similar pedals

Same type, similar features.

Specs from pedalfilter. Summary written by PedalBro from those specs and public descriptions.

Page last updated September 29, 2026.