Enclosure not stated · 4 knobs
Vemuram Jan RayVerified
Based on the Vemuram Jan Ray· 6 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 24 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×2 | 9.1K | 9.1k | read from the layout by eye | |
| ×3 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 7.5K | 7.5k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 680Ω | 680 | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 1.2K | 1.2k | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 8 | ||||
| ×1 | 22pF | 22p | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 150pF | 150p | read from the layout by eye | |
| ×1 | 39nF | 39n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×2 | 1uF | 1u | film; read from the layout by eye | |
| ×2 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×4 | 1N4148 | 1N4148 | D1-D4; read from the layout by eye | |
| D5 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | LM4558 | LM4558 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | B500K | B500k | Potentiometer | read from the layout by eye |
| Bass | B50K | B50k | Potentiometer | read from the layout by eye |
| Treble | B10K | B10k | Potentiometer | read from the layout by eye |
| Volume | B10K | B10k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 1K | 1k | read from the layout by eye | |
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