1590B · 6 knobs
Fuzz Dog· OctMast
Octave Master
Based on the Bit Commander
- Category
- Fuzz
- Controls
- Base · Down · Sub · Up · Vol · Filt
- Difficulty
- Medium
- Price
- £48.00
- Tags
- fuzz
From the vendor
This is nasty in the best possible way. An analog, monophonic octaver that'll wreak havoc with your tone, whether you wield guitar, bass or synth. Dirtying up your signal with a square wave fuzz, and splitting it into three additional octaves which you can balance with an adjustable level on each. Base signal, one octave down, two octaves down and a dirty octave up driven by a transformer, just like an octavia. Add in the filter control and you have a lot of experimenting to do. This is NOT a precise, pristine octaver. It tracks well once you're over the 7th fret, but it is glitchy which is half the fun. Think of it as a more versatile MXR Blue Box. We didn't bother trying to squeeze this into a 1590B, so BB is where it's at. The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs. Available with top or side mounted jacks/DC. 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 take a battery. Knobs are not included. Inspired by: Bit Commander Difficulty: Medium PCB size: 80 x 40mm Knobs required: 6 Direct Connect compatible (4 or 6-way) Dowload 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 40 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| R1 | 1M | 1M | ||
| R3 | 22K | 22k | ||
| R4 | 220K | 220k | ||
| R5 | 100K | 100k | ||
| R6 | 47K | 47k | ||
| R7 | 220K | 220k | ||
| R8 | 220K | 220k | ||
| R9 | 10K | 10k | ||
| R10 | 10K | 10k | ||
| R11 | 10K | 10k | ||
| R12 | 10K | 10k | ||
| R13 | 100K | 100k | ||
| Capacitors 16 | ||||
| C1 | 1u | 1u | elec | |
| C2 | 1u | 1u | elec | |
| C3 | 1u | 1u | elec | |
| C4 | 100u | 100u | elec | |
| C5 | 1u | 1u | elec | |
| C6 | 1u | 1u | elec | |
| C7 | 1u | 1u | elec | |
| C8 | 1u | 1u | elec | |
| C9 | 1u | 1u | elec | |
| C11 | 10n | 10n | ||
| C12 | 1n | 1n | ||
| C13 | 22n | 22n | ||
| C14 | 10u | 10u | elec | |
| C15 | 22n | 22n | ||
| C16 | 10u | 10u | elec | |
| C17 | 100u | 100u | elec | |
| Diodes 3 | ||||
| D2 | 1N4148 | 1N4148 | ||
| D3 | 1N4148 | 1N4148 | ||
| D1 | 1N4001 | 1N4001 | ||
| ICs 3 | ||||
| IC1 | LM386 | LM386 | ||
| IC2 | TL072 | TL072 | ||
| IC3 | CD4024BE | CD4024BE | ||
| Potentiometers 6 | ||||
| BASE | 100KB | B100k | Potentiometer | |
| DOWN | 100KB | B100k | Potentiometer | |
| SUB | 100KB | B100k | Potentiometer | |
| UP | 2KB | B2k | Potentiometer | |
| VOL | 100KA | A100k | Potentiometer | |
| FILT | 5KB | B5k | Potentiometer | |