125B · 4 knobs
From the vendor
Clone board of the Last Gasp Arts Octavella. A completely unruly octave fuzz of epic proportions. If you're looking for a polite octave fuzz, you're in the wrong place. This circuit takes your signal, converts it to a filthy fuzz, drags it's nails across a chalkboard, and then adds a screaming octave to it for good measure. Sonic destruction at it's finest.
Schematic
The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 38 rows
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ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 18 | ||||
| R1 | 47ksch | 47k | ||
| R2 | 47ksch | 47k | ||
| R3 | 1ksch | 1k | ||
| R4 | 1msch | 1M | ||
| R5 | 1msch | 1M | ||
| R6 | 3k3sch | 3.3k | ||
| R7 | 100ksch | 100k | ||
| R8 | 470ksch | 470k | ||
| R9 | 2ksch | 2k | ||
| R10 | 1ksch | 1k | ||
| R11 | 10ksch | 10k | ||
| R12 | 10ksch | 10k | ||
| R13 | 10ksch | 10k | ||
| R14 | 100ksch | 100k | ||
| R15 | 100ksch | 100k | ||
| R16 | 1ksch | 1k | ||
| R17 | 15ksch | 15k | ||
| R18 | 4k7sch | 4.7k | ||
| Capacitors 10 | ||||
| C1 | 100usch | 100u | ||
| C2 | 47usch | 47u | ||
| C3 | 100nsch | 100n | ||
| C4 | 1usch | 1u | ||
| C5 | 22nsch | 22n | ||
| C6 | 10usch | 10u | ||
| C7 | 10usch | 10u | ||
| C8 | 33nsch | 33n | ||
| C9 | 1usch | 1u | ||
| C10 | 22nsch | 22n | ||
| Diodes 3 | ||||
| D1 | 1n4001sch | 1N4001 | ||
| D2 | 1n4148sch | 1N4148 | ||
| D3 | 1n4148sch | 1N4148 | ||
| Transistors 1 | ||||
| Q1 | 2SK30A-GRocr | 2SK30A-GR | ||
| ICs 1 | ||||
| IC1 | 4558ocr | 4558 | ||
| Potentiometers 4 | ||||
| Feedback | B100Ksch | B100k | Potentiometer | |
| Gain | B50Ksch | B50k | Potentiometer | |
| Level | B50Ksch | B50k | Potentiometer | |
| Tone | B10Ksch | B10k | Potentiometer | |
| Switches 1 | ||||
| Bypass | 3PDTocr | 3PDT | ||