1590B · 3 knobs
1981 Inventions DRVVerified
Based on the 1981 Inventions DRV· 5 other boards clone it
- Category
- Distortion
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- 1981 Inventions, Distortion
From the post
There's been a lot of hype about the DRV and it's a very cool pedal from a very cool builder too. At it's heart is a tweaked RAT surrounded by 2 opamp gain stages and buffered bypass, all running on 18 volts (schematic below). Originals have soft touch relay switching, which has been omitted here. It can be wired either for true bypass or buffered bypass like the original (see wiring diagram below). If you want to use a MAX1044 chip for the charge pump instead of the LT1054, I've added 2 additional pads on the PCB to connect pin 1 to 8. Should squeeze into a 1590B nicely.
Wire In Jack to In pad on the board.
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
- Charge pump IC bottom centre is printed clearly as TL1054 in both views; probably means LT1054
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×3 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×4 | 1K | 1k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×5 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| Capacitors 9 | ||||
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×3 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 390pF | 390p | read from the layout by eye | |
| ×3 | 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 | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N4148 | 1N4148 | read from the layout by eye | |
| ×3 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 2 | ||||
| ×2 | TL072 | TL072 | read from the layout by eye | |
| ×1 | TL1054 | TL1054 | as printed; charge pump, probably LT1054; read from the layout by eye | |
| Potentiometers 3 | ||||
| Drive | A100K | A100k | Potentiometer | read from the layout by eye |
| Cut | A100K | A100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
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