Enclosure not stated · 3 knobs
Cornish SS-2 Light Drive
Based on the Cornish SS-2· 7 other boards clone it
From the post
With onboard input buffer. The original had two LM741s but these is replaced with its dual op amp equivalent 1458 to keep the board reasonably small
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 · 4 values the reader of this layout was not sure of
- Large electrolytic can at columns 9-11 rows L-N is printed '220nF': drawn as an electrolytic, probably a typo for 220uF, kept as printed
- 51Ω at column 4 rows O-R: first digit partly hidden under the 22uF can, could be longer (510Ω)
- 2,4K at column 13 rows I-K: printed clearly, unusual value
- 91Ω (two, column 17 rows H-J and column 7 rows N-P): printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×1 | 51Ω | 51 | read from the layout by eye | |
| ×2 | 91Ω | 91 | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 510Ω | 510 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 2.4K | 2.4k | read from the layout by eye | |
| ×1 | 6.8K | 6.8k | read from the layout by eye | |
| ×1 | 7.5K | 7.5k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×2 | 120K | 120k | read from the layout by eye | |
| ×2 | 150K | 150k | read from the layout by eye | |
| ×1 | 180K | 180k | read from the layout by eye | |
| ×1 | 200K | 200k | read from the layout by eye | |
| ×6 | 1M | 1M | read from the layout by eye | |
| Capacitors 13 | ||||
| ×1 | 10pF | 10p | read from the layout by eye | |
| ×3 | 1nF | 1n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×4 | 10nF | 10n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×1 | 1uF | 1u | film box; read from the layout by eye | |
| ×1 | 220nF | 220n | drawn as an electrolytic can, printed 220nF; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N270 | 1N270 | D1, D2; read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | BC549C | BC549C | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | 1458 | 1458 | 2x LM741 in original; read from the layout by eye | |
| Potentiometers 3 | ||||
| Drive | B50K | B50k | Potentiometer | wire labels say Sustain; read from the layout by eye |
| Tone | B20K | B20k | Potentiometer | read from the layout by eye |
| Volume | A10K | A10k | Potentiometer | read from the layout by eye |
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