Wilhelm Scream Overdrive Drill Template
PedalPCB · 125B · 125B 3-Knob (Type 1)
Template details
- Circuit
- Wilhelm Scream Overdrive
- Vendor
- PedalPCB
- Enclosure
- Hammond 125B
- Dimensions
- 64 × 119 × 35 mm
- Layout
- 125B 3-Knob (Type 1)
Export formats
- PDF — print at 1:1 scale
- SVG — vector graphic
About this drill template
Drill template for the PedalPCB Wilhelm Scream Overdrive, sized for a Hammond 125B enclosure (64 × 119 × 35 mm). The pre-positioned holes match the PCB's pot footprint exactly, with the footswitch centred below the 3-knob layout. Print at 1:1 scale, tape to the enclosure face, centre-punch, and drill — PCB and parts not included.
Overdrive circuits are some of the most-modded pedals in the DIY world — clipping diode swaps, true bypass conversions, internal trims for max gain or asymmetry. The drill template covers the standard build, with internal space for the kind of mods experienced builders almost always add.
Build notes
Three-knob layouts give you the full gain / EQ / volume triplet without crowding the enclosure. There's room inside for the PCB, jacks, and a 9V supply.
The Hammond 125B is one of the most common DIY pedal enclosures — a touch larger than a 1590B, slightly smaller than a 1590BB, with room for almost any single-effect PCB plus 9V supply.
Vendor specs: Designed for a 125B enclosure with top-mounted jacks
Knobs
- Volume
- Drive
- Tone