Enclosure not stated · 4 knobs
Bohm Trick Verzerrer
Based on the Bohm Trick Verzerrer
From the post
Unverified
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 23 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×3 | 47K | 47k | read from the layout by eye | |
| ×2 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 270Ω | 270 | read from the layout by eye | |
| Capacitors 5 | ||||
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | Germanium | GERMANIUM | type not given, legend says only Germanium; read from the layout by eye | |
| D2 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2N2222A | 2N2222A | legend: low-medium gain NPN silicon, try 2N2222A, BC107B, MPSA06 etc.; SC206/SC207 in original; read from the layout by eye | |
| Q2 | 2N2222A | 2N2222A | legend: low-medium gain NPN silicon, try 2N2222A, BC107B, MPSA06 etc.; SC206/SC207 in original; read from the layout by eye | |
| Q3 | 2N2222A | 2N2222A | legend: low-medium gain NPN silicon, try 2N2222A, BC107B, MPSA06 etc.; SC206/SC207 in original; read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | B50K | B50k | Potentiometer | read from the layout by eye |
| Bias | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B25K | B25k | Potentiometer | read from the layout by eye |
| Volume | B25K | B25k | Potentiometer | read from the layout by eye |