Enclosure not stated · 4 knobs
Pearl CH-02 Chorus
Based on the Pearl CH-02 Chorus
- Category
- Vibrato / Chorus
- Build
- Vero· 30×29· 58 cuts, 26 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Chorus, Modulation, Pearl
From the post
Schematic is avaiable HERE.
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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 48 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this layout was not sure of
- Q5 (column 24, rows J-L): drawn and labeled but the legend gives no type; legend lists Q2-Q4 as 2N3904
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| ×19 | 10K | 10k | read from the layout by eye | |
| ×3 | 220K | 220k | read from the layout by eye | |
| ×2 | 2.2K | 2.2k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×3 | 47K | 47k | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×2 | 56K | 56k | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×1 | 150K | 150k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×2 | 12K | 12k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 16 | ||||
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 200pF | 200p | read from the layout by eye | |
| ×2 | 470pF | 470p | read from the layout by eye | |
| ×2 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 3.9nF | 3.9n | read from the layout by eye | |
| ×3 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×2 | 33nF | 33n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×3 | 1uF | 1u | film; read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 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 | |
| ×2 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | 5.1V Zener | 5V1 | read from the layout by eye | |
| D2 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 5 | ||||
| Q1 | 2N5088 | 2N5088 | 2SC2240-GR in original; read from the layout by eye | |
| Q2 | 2N3904 | 2N3904 | 2SC1815-Y in original; read from the layout by eye | |
| Q3 | 2N3904 | 2N3904 | 2SC1815-Y in original; read from the layout by eye | |
| Q4 | 2N3904 | 2N3904 | 2SC1815-Y in original; read from the layout by eye | |
| Q5 | ? | ? | value not given; legend lists Q2-Q4 as 2N3904 (2SC1815-Y in original); read from the layout by eye | |
| ICs 4 | ||||
| IC1 | JRC4558DD | JRC4558DD | read from the layout by eye | |
| IC2 | MN3207 | MN3207 | read from the layout by eye | |
| IC3 | MN3102 | MN3102 | read from the layout by eye | |
| IC4 | TL022 | TL022 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Mix Balance | B10K | B10k | Potentiometer | read from the layout by eye |
| Tone | C100K | C100k | Potentiometer | read from the layout by eye |
| Speed | B100K | B100k | Potentiometer | read from the layout by eye |
| Depth | B100K | B100k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 50K | 50k | read from the layout by eye | |