Enclosure not stated · 5 knobs
VFE Choral Reef Analog Chorus
Based on the VFE Choral Reef Analog Chorus
- Category
- Vibrato / Chorus
- Build
- Vero· 32×25· 63 cuts, 30 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Chorus, Modulation, VFE Pedals
From the post
Great sounding chorus which is based on EHX Small Clone but with much more tweakability. Note that the swithing board is not included for this layout so the voltage reference components (8,2k, 10k and 47uF) istaken from the switching board into this layout. Schematic and info 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 53 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 4 values the reader of this layout was not sure of
- Second transistor (columns 28-29, rows R-T): labelled Q3 under the board, but the legend only lists Q1: 2N5087 and Q2: 2N5088; entered as Q3 = 2N5088
- 14,3K (three of them, top left): printed clearly, unusual value
- 65K (column 10, rows V-X): printed clearly, unusual value
- 10uF at row W, columns 23-25: drawn lying flat and semi-transparent, unlike the other electrolytics; read as an electrolytic
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 20 | ||||
| ×7 | 10K | 10k | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×3 | 14.3K | 14.3k | read from the layout by eye | |
| ×2 | 3.3K | 3.3k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×2 | 39K | 39k | read from the layout by eye | |
| ×2 | 82K | 82k | read from the layout by eye | |
| ×2 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 6.8K | 6.8k | read from the layout by eye | |
| ×1 | 8.2K | 8.2k | read from the layout by eye | |
| ×1 | 12K | 12k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 51K | 51k | read from the layout by eye | |
| ×1 | 65K | 65k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 120K | 120k | read from the layout by eye | |
| ×1 | 180K | 180k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 16 | ||||
| ×1 | 10pF | 10p | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×3 | 1nF | 1n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×2 | 6.8nF | 6.8n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 15nF | 15n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×2 | 220nF | 220n | read from the layout by eye | |
| ×1 | 1uF | 1u | film; read from the layout by eye | |
| ×5 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 1N4148 | 1N4148 | read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N5087 | 2N5087 | read from the layout by eye | |
| Q3 | 2N5088 | 2N5088 | labelled Q3 on the board; legend lists it as Q2; read from the layout by eye | |
| ICs 4 | ||||
| IC1 | TLE2074 | TLE2074 | read from the layout by eye | |
| IC2 | LM358 | LM358 | read from the layout by eye | |
| IC3 | CD4047 | CD4047 | read from the layout by eye | |
| IC4 | MN3008 | MN3008 | read from the layout by eye | |
| Potentiometers 5 | ||||
| Speed | C500K | C500k | Potentiometer | read from the layout by eye |
| Depth | B10K | B10k | Potentiometer | read from the layout by eye |
| Mix | B10K | B10k | Potentiometer | read from the layout by eye |
| Width | B100K | B100k | Potentiometer | read from the layout by eye |
| Feedback | B100K | B100k | Potentiometer | read from the layout by eye |
| Trimmers 2 | ||||
| Vol | 100K | 100k | read from the layout by eye | |
| Bias | 100K | 100k | read from the layout by eye | |
| Switches 1 | ||||
| Switch | SPDT on/off/on | SPDT ON/OFF/ON | toggle; read from the layout by eye | |