Enclosure not stated · 3 knobs
Guyatone HD-3 Hot Drive w gain ctrl
Based on the Guyatone HD-3 Hot Drive w gain ctrl
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 25 rows
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Check before you build · 2 values the reader of this layout was not sure of
- Tone and Level pots: legend prints 100kB(?), the author's own question mark
- Switch: legend prints 'SPST on/off/on' although three switch lugs are wired, so probably an SPDT on/off/on; kept as printed
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×3 | 47K | 47k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 8 | ||||
| ×2 | 47pF | 47p | read from the layout by eye | |
| ×1 | 680pF | 680p | read from the layout by eye | |
| ×1 | 1.5nF | 1.5n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×2 | 220nF | 220n | read from the layout by eye | |
| ×1 | 330nF | 330n | read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D3 | 1S1588 | 1S1588 | Try 1N4148/1N914; read from the layout by eye | |
| D4 | 1S1588 | 1S1588 | Try 1N4148/1N914; read from the layout by eye | |
| D5 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | 4558 | 4558 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | A1M | A1M | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | legend: 100kB(?); read from the layout by eye |
| Level | B100K | B100k | Potentiometer | legend: 100kB(?); read from the layout by eye |
| Switches 1 | ||||
| Switch | SPST on/off/on | SPST ON/OFF/ON | toggle, as printed; read from the layout by eye | |
| LEDs 2 | ||||
| D1 | 3mm red LED | 3MM RED LED | read from the layout by eye | |
| D2 | 3mm red LED | 3MM RED LED | read from the layout by eye | |