Enclosure not stated · 3 knobs
Frantone Bass Sweet
Based on the Frantone Bass Sweet
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 28 rows
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Check before you build · 4 values the reader of this layout was not sure of
- 1nF small round cap drawn transparent over a cut at top left (row B, next to the 100Ω): text sits on the cut marker, read as 1nF
- 220K transparent resistor over a cut beside the two 1uF caps near the board centre top: middle digits covered by the cut, read as 220K
- 47K transparent resistor on the top row at right: read as 47K through the cut marker
- Q4 part number taken from the legend (FS25444 838), small print
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| ×4 | 100Ω | 100 | read from the layout by eye | |
| ×3 | 510K | 510k | read from the layout by eye | |
| ×6 | 10K | 10k | read from the layout by eye | |
| ×3 | 220K | 220k | read from the layout by eye | |
| ×2 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×3 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×1 | 390Ω | 390 | read from the layout by eye | |
| ×2 | 2.2K | 2.2k | read from the layout by eye | |
| Capacitors 7 | ||||
| ×3 | 390pF | 390p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×7 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 1000uF | 1m | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×4 | 1N6263 | 1N6263 | D1-D4; read from the layout by eye | |
| D5 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | MPSA18 | MPSA18 | read from the layout by eye | |
| Q2 | NTE103A | NTE103A | NPN germanium; legend: Try any NPN Germanium, MP38A, 2N1306, AC127 etc.; read from the layout by eye | |
| Q3 | NTE103A | NTE103A | NPN germanium; legend: Try any NPN Germanium, MP38A, 2N1306, AC127 etc.; read from the layout by eye | |
| Q4 | FS25444 838 | FS25444 838 | legend: Try any low gain NPN Silicon, 2N2369, 2N1613, 2N3903 etc.; read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | A10K | A10k | Potentiometer | read from the layout by eye |
| Tone | A10K | A10k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |