Enclosure not stated · 2 knobs
Mr. Multi
Based on the Korg FK-2 Mr. Multi· 1 other board clones it
- Category
- Wah / Envelope· Wah
- Controls
- Depth · Pedal
- Price
- $15.00in stock
From the vendor
Clone of the Korg Mr. Multi combination phaser wah. It offers three setting; wah, phaser, and wah/phaser combined. The latter being the crown jewel. There's also an LFO in the mix, which you can switch the treadle to control the speed of. Some minor improvements over the original design include an LFO depth pot, and a trimmer for tweaking the treadle sweep, which allows you to adjust the knee point to where you like it. The bonus? This board drops right into any Dunlop Crybaby* shell.
*"Dunlop" and "Crybaby" are registered trademarks of Jim Dunlop USA. We are in no way affiliated with Jim Dunlop USA, or any of it's subsidiaries.
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 85 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 45 | ||||
| R1 | 22Kocr | 22k | ||
| R2 | 470Kocr | 470k | ||
| R3 | 4K7ocr | 4.7k | ||
| R4 | 2K7ocr | 2.7k | ||
| R5 | 47Kocr | 47k | ||
| R6 | 47Kocr | 47k | ||
| R7 | 100Kocr | 100k | ||
| R8 | 22Kocr | 22k | ||
| R9 | 470Kocr | 470k | ||
| R10 | 470Kocr | 470k | ||
| R11 | 47Kocr | 47k | ||
| R12 | 47Kocr | 47k | ||
| R13 | 39Kocr | 39k | ||
| R14 | 470Kocr | 470k | ||
| R15 | 470Kocr | 470k | ||
| R16 | 47Kocr | 47k | ||
| R17 | 330Kocr | 330k | ||
| R18 | 47Kocr | 47k | ||
| R19 | 39Kocr | 39k | ||
| R20 | 47Kocr | 47k | ||
| R21 | 22Kocr | 22k | ||
| R22 | 470Kocr | 470k | ||
| R23 | 470Kocr | 470k | ||
| R24 | 220Kocr | 220k | ||
| R25 | 47Kocr | 47k | ||
| R26 | 22Kocr | 22k | ||
| R27 | 3K3ocr | 3.3k | ||
| R28 | 22Kocr | 22k | ||
| R29 | 47Kocr | 47k | ||
| R30 | 39Kocr | 39k | ||
| R31 | 470Kocr | 470k | ||
| R32 | 470Kocr | 470k | ||
| R33 | 47Kocr | 47k | ||
| R34 | 47Kocr | 47k | ||
| R35 | 39Kocr | 39k | ||
| R36 | 22Kocr | 22k | ||
| R41 | 8K2ocr | 8.2k | ||
| R37 | 22Kocr | 22k | ||
| R42 | 470Kocr | 470k | ||
| R38 | 1K5ocr | 1.5k | ||
| R43 | 22Kocr | 22k | ||
| R39 | 22Kocr | 22k | ||
| R44 | 8K2ocr | 8.2k | ||
| R40 | 22Kocr | 22k | ||
| R45 | 22Kocr | 22k | ||
| Capacitors 21 | ||||
| C1 | 10nocr | 10n | ||
| C2 | 100pocr | 100p | ||
| C3 | 1uocr | 1u | ||
| C4 | 1uocr | 1u | ||
| C5 | 1uocr | 1u | ||
| C6 | 100nocr | 100n | ||
| C7 | 2nocr | 2n | ||
| C8 | 100nocr | 100n | ||
| C9 | 2nocr | 2n | ||
| C10 | 1Uocr | 1u | ||
| C11 | 100nocr | 100n | ||
| C12 | 2nocr | 2n | ||
| C13 | 100nocr | 100n | ||
| C14 | 2nocr | 2n | ||
| C15 | 1uocr | 1u | ||
| C16 | 100nocr | 100n | ||
| C17 | 33uocr | 33u | ||
| C18 | 220Uocr | 220u | ||
| C19 | 6u8ocr | 6.8u | ||
| C20 | 2u2ocr | 2.2u | ||
| C21 | 100nocr | 100n | ||
| Diodes 5 | ||||
| D1 | 1N4001ocr | 1N4001 | ||
| D2 | 4.1Vocr | 4V1 | ||
| D3 | 1N4148ocr | 1N4148 | ||
| D4 | 1N4148ocr | 1N4148 | ||
| D5 | 1N4148ocr | 1N4148 | ||
| Transistors 5 | ||||
| Q1 | 2SK30A-GRocr | 2SK30A-GR | ||
| Q2 | 2SK30A-GRocr | 2SK30A-GR | ||
| Q3 | 2SK30A-GRocr | 2SK30A-GR | ||
| Q4 | 2SK30A-GRocr | 2SK30A-GR | ||
| Q5 | 2SK30A-GRocr | 2SK30A-GR | ||
| ICs 2 | ||||
| IC1 | LM358Nocr | LM358N | ||
| IC2 | LM324Nocr | LM324N | ||
| Potentiometers 2 | ||||
| DEPTH | B100Kocr | B100k | Potentiometer | |
| PEDAL | B1Mocr | B1M | Potentiometer | |
| Trimmers 3 | ||||
| BIASTRIM | 10Kocr | 10k | Trimmer | |
| DEPTHTRIM | 10Kocr | 10k | Trimmer | |
| SWEEPTRIM | 500Kocr | 500k | Trimmer | |
| Switches 2 | ||||
| SW1 | 4P3Tocr | 4P3T | ||
| SW2 | 4P3Tocr | 4P3T | ||
Other boards based on the Korg FK-2 Mr. Multi
- Korg FK-2 Mr. Multi Dirtbox Layouts