Enclosure not stated · 3 knobs
Cornish G-2 (2012 battery free version)
Based on the Cornish G-2· 5 other boards clone it
From the post
Schematic is avaiable HERE.
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 47 rows
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Check before you build · 4 values the reader of this layout was not sure of
- 390K standing resistor at column 16 rows E-G: partly covered by the 22uF cap, reads 390K
- 7.5K standing resistor at column 7 rows S-U: the 7 sits on a track cut, reads 7,5K
- D3-D4 are printed BAT185 in the legend, which is not a part; entered as BAT85
- 200K at column 2 rows T-V and 51Ω at column 10: printed clearly, unusual values
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 22 | ||||
| ×1 | 10M | 10M | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×3 | 470K | 470k | read from the layout by eye | |
| ×1 | 390K | 390k | read from the layout by eye | |
| ×1 | 200K | 200k | read from the layout by eye | |
| ×1 | 150K | 150k | read from the layout by eye | |
| ×3 | 120K | 120k | read from the layout by eye | |
| ×5 | 100K | 100k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×2 | 39K | 39k | read from the layout by eye | |
| ×3 | 15K | 15k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×1 | 8.2K | 8.2k | read from the layout by eye | |
| ×1 | 7.5K | 7.5k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 2K | 2k | read from the layout by eye | |
| ×1 | 1.8K | 1.8k | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×1 | 120Ω | 120 | read from the layout by eye | |
| ×5 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 51Ω | 51 | read from the layout by eye | |
| Capacitors 11 | ||||
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×2 | 470pF | 470p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×5 | 220nF | 220n | read from the layout by eye | |
| ×3 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×3 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×2 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 5 | ||||
| D1 | Germanium | GERMANIUM | Vf 0,36-0,4; read from the layout by eye | |
| D2 | Germanium | GERMANIUM | Vf 0,36-0,4; read from the layout by eye | |
| D3 | BAT85 | BAT85 | as printed; printed 'BAT185' on the drawing; read from the layout by eye | |
| D4 | BAT85 | BAT85 | as printed; printed 'BAT185' on the drawing; read from the layout by eye | |
| D5 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | BC549C | BC549C | read from the layout by eye | |
| Q2 | BC549C | BC549C | read from the layout by eye | |
| Q3 | BC549C | BC549C | read from the layout by eye | |
| Q4 | BC549C | BC549C | read from the layout by eye | |
| Q5 | BC549C | BC549C | read from the layout by eye | |
| Q6 | BC549C | BC549C | read from the layout by eye | |
| Potentiometers 3 | ||||
| Sustain | A100K | A100k | Potentiometer | read from the layout by eye |
| Tone | B25K | B25k | Potentiometer | read from the layout by eye |
| Volume | A10K | A10k | Potentiometer | read from the layout by eye |
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