1590B · 4 knobs
Jon Patton's Blue WarblerVerified
Based on the Jon Patton Blue Warbler· 1 other board clones it
From the post
Continuing Jon Patton Week with a vibe/tremolo effect called the Blue Warbler. It features envelop control over the LFO and can be built with one or two LDR stages (layout below reflects the 2 stage version). Jon explains it best, so be sure to check out his build doc and demo below. It'll be a little tight in a 1590B because of the way the pots are board mounted, but should be doable.
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 34 rows
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Check before you build · 2 values the reader of this layout was not sure of
- 1.5-2.2K next to the 100uF: printed as a range, not a single value
- 10-22K left of the lower 100nF: printed as a range, not a single value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 1.8K | 1.8k | read from the layout by eye | |
| ×1 | 1.5-2.2K | 1.5k-2.2k | range as printed; read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 2.7K | 2.7k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×4 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 10-22K | 10k-22k | range as printed; read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×2 | 2.2M | 2.2M | read from the layout by eye | |
| ×2 | 10M | 10M | read from the layout by eye | |
| Capacitors 6 | ||||
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×3 | 22nF | 22n | read from the layout by eye | |
| ×4 | 100nF | 100n | read from the layout by eye | |
| ×3 | 1uF | 1u | drawn as box capacitors; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×3 | 1N5817 | 1N5817 | read from the layout by eye | |
| ×1 | 9.1V | 9V1 | zener; read from the layout by eye | |
| Transistors 5 | ||||
| Q1 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| Q2 | BC549C | BC549C | read from the layout by eye | |
| Q3 | BC549C | BC549C | read from the layout by eye | |
| Q4 | BC549C | BC549C | read from the layout by eye | |
| Q5 | BC549C | BC549C | read from the layout by eye | |
| Opto 2 | ||||
| LDR1 | Silonex 7532 | SILONEX 7532 | LDR; read from the layout by eye | |
| LDR2 | Silonex 7532 | SILONEX 7532 | LDR; read from the layout by eye | |
| Potentiometers 4 | ||||
| Sensitivity | B100K | B100k | Potentiometer | labelled Sense on the board; read from the layout by eye |
| Depth | B2K | B2k | Potentiometer | read from the layout by eye |
| Rate | C100K | C100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| V/T | DPDT on/on | DPDT ON/ON | toggle; read from the layout by eye | |
| LEDs 1 | ||||
| LED | Blue LED | BLUE LED | on board; legend: Blue or white; read from the layout by eye | |
Other boards based on the Jon Patton Blue Warbler
- Blue Warbler 2 JMK PCBs · $12.00