Enclosure not stated · 5 knobs
Dunwich Amplification Olde Dirty Bass - 125b/Custom versionVerified
Based on the Dunwich Amplification Olde Dirty Bass· 2 other boards clone it
From the post
This one shares almost the same footprint as the earlier "Big Box" version but component values have been changed all across the circuit. No major changes except for the "bass boost" cap/resistor at the Cut switch and a few extra caps and resistors.
Schematic is avaiable at FSB.
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 35 rows
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Check before you build · 1 value the reader of this layout was not sure of
- IC2 'TLC1144': printed clearly in the legend, unusual part number (possibly meant LTC1144)
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×4 | 100K | 100k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 27K | 27k | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 11 | ||||
| ×3 | 330pF | 330p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 1.5nF | 1.5n | read from the layout by eye | |
| ×2 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 68nF | 68n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 150nF | 150n | read from the layout by eye | |
| ×1 | 1uF | 1u | read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | 1N914 | 1N914 | read from the layout by eye | |
| D4 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| Q2 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| ICs 2 | ||||
| IC1 | TL072 | TL072 | read from the layout by eye | |
| IC2 | TLC1144 | TLC1144 | charge pump; legend: MAX1044/ICL7660S possible with a cut omitted and 9v only; read from the layout by eye | |
| Potentiometers 5 | ||||
| Mid | C100K | C100k | Potentiometer | read from the layout by eye |
| Volume | A1M | A1M | Potentiometer | read from the layout by eye |
| Gain | A1M | A1M | Potentiometer | read from the layout by eye |
| Treble | A1M | A1M | Potentiometer | read from the layout by eye |
| Bass | A1M | A1M | Potentiometer | read from the layout by eye |
| Switches 2 | ||||
| Cut Sw | SPDT on/off/on | SPDT ON/OFF/ON | toggle; read from the layout by eye | |
| Clip Sw | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |
| LEDs 1 | ||||
| ×2 | 3mm red LED | 3MM RED LED | D2, D3; on the board; read from the layout by eye | |
Other boards based on the Dunwich Amplification Olde Dirty Bass
- Dunwich Amplification Olde Dirty Bass - Big box version Dirtbox Layouts · 125B
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