Enclosure not stated · 4 knobs
Walrus Audio Julia ChorusVerified
Based on the Walrus Audio Julia Chorus· 2 other boards clone it
- Category
- Vibrato / Chorus
- Build
- Vero· 33×27· 65 cuts, 32 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Chorus, Modulation, Walrus Audio
From the post
Requested a few times so here it is. It is based on Boss CE-2 but it has a few useful addons and mods. 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 54 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- Black diode at column 31 rows A-C is labelled D4 on the board although D4 and D5 are the red LEDs at the bottom right; entered as D6 1N5817
- C17 (film cap, column 6 rows C-E): no value printed anywhere
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 17 | ||||
| ×15 | 10K | 10k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×1 | 33Ω | 33 | read from the layout by eye | |
| ×4 | 12K | 12k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×3 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×1 | 2.7K | 2.7k | read from the layout by eye | |
| ×6 | 47K | 47k | read from the layout by eye | |
| ×3 | 33K | 33k | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 6.8K | 6.8k | read from the layout by eye | |
| ×1 | 1K | 1k | 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 | ||||
| ×2 | 8.2nF | 8.2n | read from the layout by eye | |
| ×2 | 3.3nF | 3.3n | read from the layout by eye | |
| C17 | ? | ? | value not given; read from the layout by eye | |
| ×2 | 33nF | 33n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 470pF | 470p | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×2 | 1uF | 1u | read from the layout by eye | |
| ×2 | 6.8nF | 6.8n | read from the layout by eye | |
| ×2 | 47nF | 47n | 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 | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | 1N914 | 1N914 | read from the layout by eye | |
| D2 | 1N914 | 1N914 | read from the layout by eye | |
| D3 | 9.1V Zener | 9V1 | read from the layout by eye | |
| D6 | 1N5817 | 1N5817 | drawn labelled D4 on the board; read from the layout by eye | |
| Transistors 5 | ||||
| Q1 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q2 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q3 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q4 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q5 | 2N5088 | 2N5088 | read from the layout by eye | |
| ICs 4 | ||||
| IC1 | 4558 | 4558 | 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 | ||||
| Depth | B100K | B100k | Potentiometer | read from the layout by eye |
| Rate | B100K | B100k | Potentiometer | read from the layout by eye |
| Blend | B10K | B10k | Potentiometer | read from the layout by eye |
| Lag | B250K | B250k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| Bias | 50K | 50k | read from the layout by eye | |
| Switches 1 | ||||
| Switch | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |
| LEDs 2 | ||||
| D4 | 3mm red LED | 3MM RED LED | read from the layout by eye | |
| D5 | 3mm red LED | 3MM RED LED | read from the layout by eye | |
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