1590B · 6 knobs
Fuzz Dog· DoomScum
Doom Scum Fuzz
Based on the Doom Bloom
- Category
- Fuzz
- Controls
- Bias · Bloom · Body · Head · High · Level
- Difficulty
- Medium
- Price
- £38.40
- Tags
- fuzz
From the vendor
The stoned drop-out sibling of the Pond Scum, this fella knows what filth you're after and how to get it.
Taking the PS as a starting point, this one gets nastier with more gain on tap, more bottom end and more headroom. Works really well for drop-tuned guitars and even bass so noone needs to miss out on the mayhem, but you can easily tame the bottom end if you want to cut in a mix.
Shape as you like boost or cut the gain, beef up the lows or wind them down, smooth out the highs, tweak the bias for growl or fizz. There's a lot to play with.
The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs. Pot spacing is 17.5mm so keep those knobs small.
If you want the PCB without parts there's a link for that at the bottom of the page.
Partial kit: PCB, all board-mounted components), pots.
Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED.
Enclosure (pre-drilled) is available as an option with full kits, and will not take a battery. Knobs are not included.
Builds are only available with full kits including enclosure. Please choose appropriate knobs.
Inspired by: Doom Bloom
Difficulty: Medium
PCB size: 50 x 38mm
Knobs required: 6
Enclosure: 1590B
Direct-Connect compatible (4-way)
Download the INSTRUCTION PDF
Schematic
The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 26 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| R1 | 1M | 1M | ||
| R2 | 1K | 1k | ||
| R3 | 1M | 1M | ||
| R4 | 2M2 | 2.2M | ||
| R5 | 47K | 47k | ||
| R6 | 100K | 100k | ||
| Capacitors 9 | ||||
| C1 | 470p | 470p | ||
| C2 | 1u | 1u | ||
| C3 | 1u | 1u | ||
| C4 | 1u | 1u | ||
| C5 | 4n7 | 4.7n | ||
| C6 | 33n | 33n | ||
| C7 | 100n | 100n | ||
| C8 | 1u | 1u | ||
| C9 | 100u | 100u | elec | |
| Diodes 3 | ||||
| D1 | 1N5817 | 1N5817 | ||
| D2 | 1N4148 | 1N4148 | ||
| D3 | 5mm | 5MM | ||
| Transistors 2 | ||||
| Q1 | 2N5089 | 2N5089 | ||
| Q2 | 2N5089 | 2N5089 | ||
| Potentiometers 6 | ||||
| BIAS | 1KB | B1k | Potentiometer | |
| BLOOM | 100KA | A100k | Potentiometer | |
| BODY | 100KA | A100k | Potentiometer | |
| HEAD | 100KA | A100k | Potentiometer | |
| HIGH | 100KA | A100k | Potentiometer | |
| LEVEL | 100KA | A100k | Potentiometer | |