Prism FET Amplifier Drill Template
Aion FX · 125B
Template details
- Circuit
- Prism FET Amplifier
- Vendor
- Aion FX
- Enclosure
- Hammond 125B
- Dimensions
- 63.6 × 119.3 × 35.8 mm
- Layout
- 125B 3-Knob 1-Toggle (R) w/ Battery
- Category
- Guitar effect
Export formats
- PDF: print at 1:1 scale
- SVG: vector graphic
About this drill template
Drill template for the Aion FX Prism FET Amplifier, sized for a Hammond 125B enclosure (63.6 × 119.3 × 35.8 mm). The pre-positioned holes match the PCB's pot footprint exactly, with the footswitch centred below the 3-knob layout, with 1 toggle. Print at 1:1 scale, tape to the enclosure face, centre-punch, and drill. PCB and parts not included.
Aion FX description: “A pedal conversion of the obscure but highly sought-after boost with a two-band EQ, most notably used by The Edge of U2.”
Drill measurements
Hole centres for the 125B 3-Knob 1-Toggle (R) w/ Battery layout. X runs left to right from the centre of the face being drilled. On the enclosure face, Y is measured from the centre, positive towards the top. For holes on a side, Y is the distance down the wall, measured from the face edge. Export the PDF for a 1:1 printable version with a scale check.
| Hole | Face | X (mm) | Y (mm) | Diameter |
|---|---|---|---|---|
| Pot | Enclosure face | -16.5 | 43.4 | 7 mm (0.28 in) |
| Pot | Enclosure face | 16.5 | 43.4 | 7 mm (0.28 in) |
| Pot | Enclosure face | 0 | 16.8 | 7 mm (0.28 in) |
| Toggle | Enclosure face | 21.6 | 16.8 | 6 mm (0.24 in) |
| LED bezel | Enclosure face | -19.7 | -30.5 | 8 mm (0.31 in) |
| Footswitch | Enclosure face | 0 | -30.5 | 12 mm (0.47 in) |
| Jack | Top side | -15.9 | 23.8 | 9.5 mm (0.37 in) |
| DC Jack | Top side | 0 | 23.8 | 12 mm (0.47 in) |
| Jack | Top side | 15.9 | 23.8 | 9.5 mm (0.37 in) |
Never drilled one before? How to drill a pedal enclosure walks you through the entire process, from punching the centres to the final step drill size.
Jig A covers 125B 3-Knob 1-Toggle (R) w/ Battery
Drop it over the enclosure, punch a mark through the holes this build uses, then lift it off and drill. It wraps onto the sides too, so the jacks and DC socket are covered.
See the jig pack, $12 →