Enclosure not stated · 3 knobs
Pigtronix Bass Fat Drive
Based on the Pigtronix Bass Fat Drive
From the post
Schematic is avaiable HERE. Very close to the normal Fat Drive, just four cap value changes.
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 34 rows
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Check before you build · 2 values the reader of this layout was not sure of
- 130K ×4 (columns 2, 4, 14, 17 in the lower half): printed clearly, unusual value
- 1.6K at column 13 rows C-E: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×4 | 100K | 100k | read from the layout by eye | |
| ×1 | 680K | 680k | read from the layout by eye | |
| ×2 | 2.2M | 2.2M | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×1 | 10M | 10M | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×4 | 130K | 130k | read from the layout by eye | |
| ×1 | 1.6K | 1.6k | read from the layout by eye | |
| ×1 | 62K | 62k | read from the layout by eye | |
| ×1 | 560K | 560k | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 150Ω | 150 | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 9 | ||||
| ×2 | 150nF | 150n | read from the layout by eye | |
| ×1 | 15nF | 15n | read from the layout by eye | |
| ×1 | 56nF | 56n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 27nF | 27n | read from the layout by eye | |
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; 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 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 | |
| ICs 3 | ||||
| IC1 | TL072 | TL072 | read from the layout by eye | |
| IC2 | CD4049UB | CD4049UB | read from the layout by eye | |
| IC3 | TL072 | TL072 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | B1M | B1M | Potentiometer | read from the layout by eye |
| Tone | B10K | B10k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Switch | SPDT | SPDT | toggle; read from the layout by eye | |