1590B · 1 knobs
U-235 Suboctave Generator
- Category
- Octave / Pitch
- Controls
- Level
- Price
- see vendor
From the vendor
The U-235 is an analog monophonic octave down pedal based around a CD4046 PLL chip that is used for octave dividing. It also has a detuned mode and a CV input.
Features • Clean signal coming through at all times • Semi-Clean lowpass filtered octave down • One and two octave down • Detuned Mode - in between one and two octaves down • CV input for controlling the octave setting
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• PCB available in the shop
• Build document PDF • Stripboard layout PDF
DIY kits available from Das Musikding Smallbear Electronics
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Schematic
The schematic is in the vendor's build document, page 7. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 49 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 24 | ||||
| R1 | 1M | 1M | ||
| R2 | 1M | 1M | ||
| R3 | 10K | 10k | ||
| R4 | 470K | 470k | ||
| R5 | 22K | 22k | ||
| R6 | 330K | 330k | ||
| R7 | 330K | 330k | ||
| R8 | 10K | 10k | ||
| R9 | 10K | 10k | ||
| R10 | 10K | 10k | ||
| R11 | 10K | 10k | ||
| R12 | 100K | 100k | ||
| R13 | 100K | 100k | ||
| R14 | 100K | 100k | ||
| R15 | 100K | 100k | ||
| R16 | 22K | 22k | ||
| R17 | 100K | 100k | ||
| R18 | 4.7K | 4.7k | ||
| R19 | 100K | 100k | ||
| R20 | 100K | 100k | ||
| R21 | 330K | 330k | ||
| R22 | 39K | 39k | ||
| R23 | 10K | 10k | ||
| R24 | 4.7K | 4.7k | ||
| Capacitors 19 | ||||
| C1 | 100nF | 100n | ||
| C2 | 2.2nF | 2.2n | ||
| C3 | 10nF | 10n | ||
| C4 | 100uF | 100u | ||
| C5 | 4.7nF | 4.7n | ||
| C6 | 33nF | 33n | ||
| C7 | 100nF | 100n | ||
| C8 | 10nF | 10n | ||
| C9 | 22nF | 22n | ||
| C10 | 100nF | 100n | ||
| C11 | 220nF | 220n | ||
| C12 | 10uF | 10u | ||
| C13 | 470pF | 470p | ||
| C14 | 100nF | 100n | ||
| C15 | 10nF | 10n | ||
| C16 | 1nF | 1n | ||
| C17 | 100nF | 100n | ||
| C18 | 100uF | 100u | ||
| C19 | 100nF | 100n | ||
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | ||
| ICs 3 | ||||
| U1 | TL072 | TL072 | ||
| U2 | TL074 | TL074 | ||
| U3 | CD4046BE | CD4046BE | ||
| Potentiometers 1 | ||||
| LEVEL | C100K | C100k | Potentiometer | |
| Trimmers 1 | ||||
| TRIM | 1M | 1M | Trimmer | |