Enclosure not stated · 4 knobs
Trombetta Mini Bone
Based on the Trombetta Mini-Bone· 4 other boards clone it
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 22 rows
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Check before you build · 2 values the reader of this layout was not sure of
- Q2 printed '2N2097A' in the legend: printed clearly, unusual part number (possibly a typo for another PNP type); kept as printed
- Range Switch printed 'SPDT on7on', read as SPDT on/on
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| ×2 | 560K | 560k | read from the layout by eye | |
| ×1 | 150K | 150k | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| ×1 | 2K | 2k | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| Capacitors 7 | ||||
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×1 | 330nF | 330n | read from the layout by eye | |
| ×1 | 100nF | 100n | 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 | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N4148 | 1N4148 | D1, D2; read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q2 | 2N2097A | 2N2097A | legend: 2N2097A or other PNP Ge, Hfe 150-200; read from the layout by eye | |
| Potentiometers 4 | ||||
| Mood | B50K | B50k | Potentiometer | read from the layout by eye |
| Bore | B50K | B50k | Potentiometer | read from the layout by eye |
| Gain | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
| Switches 2 | ||||
| Range | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |
| Tone | SPDT on/off/on | SPDT ON/OFF/ON | toggle; read from the layout by eye | |
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