125B · 3 knobs
From the vendor
The PedalPCB NuDrive is a Korg NuTube 6P1 vacuum tube based overdrive pedal.
NOTE: Includes NuDrive PCB and 6P1 Carrier PCB. Korg Nutube must be purchased separately.
Nutube – A new vacuum tube which puts vacuum fluorescent display technology to practical use
Nutube, similar to a conventional vacuum tube, has an anode grid filament structure, and operates exactly as a triode vacuum tube. Also similar to a vacuum tube, it creates the same characteristic rich overtones.
By applying their vacuum fluorescent display technology, Noritake Itron Corp., a Noritake Co. Ltd affiliated company, have devised a structure which achieves substantial power saving, miniaturization, and quality improvements when compared with a conventional vacuum tube.
Controls
• Volume
• Tone
• Drive
Details
• Utilizes the Korg NuTube 6P1
• Includes 6P1 carrier PCB
• Designed for a 125B enclosure with top-mounted jacks
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 49 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 20 | ||||
| R1 | 1M | 1M | ||
| R2 | 100K | 100k | ||
| R5 | 1M | 1M | ||
| R6 | 20K | 20k | ||
| R7 | 330 | 330 | ||
| R8 | 3K3 | 3.3k | ||
| R9 | 1K | 1k | ||
| R10 | 1K | 1k | ||
| R11 | 1K | 1k | ||
| R12 | 100K | 100k | ||
| R15 | 10K | 10k | ||
| R16 | 10K | 10k | ||
| R17 | 10K | 10k | ||
| R18 | 4K7 | 4.7k | ||
| R20 | 150 | 150 | ||
| R21 | 150 | 150 | ||
| R22 | 470K | 470k | ||
| R23 | 470K | 470k | ||
| R24 | 33K | 33k | ||
| R25 | 33K | 33k | ||
| Capacitors 18 | ||||
| C1 | 27n | 27n | ||
| C2 | 100n | 100n | ||
| C3 | 51p | 51p | ||
| C4 | 100n | 100n | ||
| C5 | 220n | 220n | ||
| C6 | 220n | 220n | ||
| C7 | 1u | 1u | ||
| C8 | 100n | 100n | ||
| C9 | 10u | 10u | ||
| C10 | 47u | 47u | ||
| C11 | 47u | 47u | ||
| C12 | 10u | 10u | ||
| C13 | 10u | 10u | ||
| C14 | 10u | 10u | ||
| C15 | 10u | 10u | ||
| C16 | 10u | 10u | ||
| C17 | 100n | 100n | ||
| C18 | 100n | 100n | ||
| Diodes 5 | ||||
| D1 | 1N914 | 1N914 | ||
| D2 | 1N914 | 1N914 | ||
| D3 | 1N914 | 1N914 | ||
| D4 | 1N5817 | 1N5817 | ||
| D5 | 1N914 | 1N914 | ||
| ICs 3 | ||||
| IC1 | JRC4558 | JRC4558 | ||
| IC2 | L78L33 | L78L33 | ||
| IC3 | JRC4558 | JRC4558 | ||
| Potentiometers 3 | ||||
| VOLUME | B100K | B100k | Potentiometer | |
| TONE | B5K | B5k | Potentiometer | |
| DRIVE | B500K | B500k | Potentiometer | |