Enclosure not stated · 2 knobs
Valve WizardEntropy Chorus
Based on the Valve WizardEntropy Chorus
- Category
- Vibrato / Chorus
- Build
- Perfboard
- Layout
- Unverified · no build reported at Effects Layouts (blog) yet
- Tags
- Chorus, Valve Wizard
From the post
Stumbled across this effect while looking for a completely different schematic. It's a low cost chorus designed by Merlin Blencowe (here's his schematic for reference), using a PT2399. It generates deep modulation and a very thick warble (here's a sound clip).
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 21 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×1 | 91K | 91k | read from the layout by eye | |
| ×1 | 820K | 820k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 7 | ||||
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×5 | 100nF | 100n | read from the layout by eye | |
| ×1 | 33pF | 33p | read from the layout by eye | |
| ×2 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D2 | 1N4148 | 1N4148 | read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 1 | ||||
| Q2 | NPN Silicon | NPN SILICON | legend: NPN Silicon; read from the layout by eye | |
| ICs 2 | ||||
| IC1 | PT2399 | PT2399 | read from the layout by eye | |
| Q1 | 78L05 | 78L05 | regulator; read from the layout by eye | |
| Potentiometers 2 | ||||
| Rate | B100K | B100k | Potentiometer | read from the layout by eye |
| Depth | B10K | B10k | Potentiometer | read from the layout by eye |
| LEDs 1 | ||||
| D1 | Red LED | RED LED | on the board; read from the layout by eye | |