1590B · 4 knobs
SentinelVerified
Based on the Sentinel· 1 other board clones it
From the post
The Sentinel is a PT2399-based pitch modulator, delay, reverb and drone verb designed by Arnoud Philip (~arph) as part of the DIYSB 10th Anniversary design contest. It's based on the Sewer Pipes ring-verb and the Noise Ensemble. Original thread here, schematic here. Should be able to squeeze it into a 1590B.
Note: LED2 in the layout is a bi-color LED that could be used externally as a rate indicator or even the on/off indicator. For the later, use the footswitch to break/connect the connection between the common cathode (middle lead) and the 1k resistor going to ground at the top of the board. Also, the 25k trimmer is a fine tune control for the Drone pot.
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 24 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
- Regulator at the right edge (rows I-K): the board shows only pin letters O G I on a TO-92 outline; the value 7805 comes from the wiring diagram, so a 78L05 is probably what is meant
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×8 | 10K | 10k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 150K | 150k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 510Ω | 510 | read from the layout by eye | |
| Capacitors 6 | ||||
| ×6 | 100nF | 100n | read from the layout by eye | |
| ×3 | 470nF | 470n | read from the layout by eye | |
| ×1 | 330nF | 330n | read from the layout by eye | |
| ×1 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×3 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| ICs 3 | ||||
| ×1 | LM358N | LM358N | read from the layout by eye | |
| ×1 | PT2399 | PT2399 | read from the layout by eye | |
| ×1 | 7805 | 7805 | regulator; named on the wiring diagram, drawn as TO-92 (O G I); read from the layout by eye | |
| Potentiometers 4 | ||||
| Speed | B1M | B1M | Potentiometer | read from the layout by eye |
| Depth | B10K | B10k | Potentiometer | read from the layout by eye |
| Drone | B5K | B5k | Potentiometer | read from the layout by eye |
| Width | B5K | B5k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 25K | 25k | read from the layout by eye | |
| LEDs 2 | ||||
| LED1 | 3mm green LED | 3MM GREEN LED | on the board; read from the layout by eye | |
| LED2 | Bi-color LED | BI-COLOR LED | on leads at the board edge; read from the layout by eye | |
Other boards based on the Sentinel
- Sentinel Dirtbox Layouts