Enclosure not stated · 5 knobs
Lell DD Drive Distortion
Based on the Lell DD Drive Distortion
- Category
- Distortion
- Build
- Vero· 21×25· 32 cuts, 9 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Distortion, Lell, Overdrive, USSR
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 43 rows
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Check before you build · 3 values the reader of this layout was not sure of
- IC1-IC2: the legend prints '1485, 4558'; 1485 is probably a slip for 1458, kept as printed
- D1-D5: legend prints 'KD3225' (probably the Soviet KD522); kept as printed, legend suggests 1N4148/1N914
- 20K at column 7 rows B-E, 36K at column 6 rows G-J, 75K, 430K, 240K: printed clearly, unusual values
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 20 | ||||
| ×4 | 10K | 10k | read from the layout by eye | |
| ×3 | 7.5K | 7.5k | read from the layout by eye | |
| ×3 | 470K | 470k | read from the layout by eye | |
| ×2 | 240K | 240k | read from the layout by eye | |
| ×2 | 2K | 2k | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| ×1 | 51Ω | 51 | read from the layout by eye | |
| ×1 | 36K | 36k | read from the layout by eye | |
| ×1 | 75K | 75k | read from the layout by eye | |
| ×1 | 270K | 270k | read from the layout by eye | |
| ×1 | 430K | 430k | read from the layout by eye | |
| ×1 | 820K | 820k | read from the layout by eye | |
| ×1 | 12K | 12k | read from the layout by eye | |
| ×1 | 180K | 180k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 560K | 560k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 9 | ||||
| ×8 | 150nF | 150n | read from the layout by eye | |
| ×2 | 330nF | 330n | read from the layout by eye | |
| ×3 | 1.2nF | 1.2n | read from the layout by eye | |
| ×2 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×3 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×5 | KD3225 | KD3225 | D1-D5; Try 1N4148/1N914; read from the layout by eye | |
| D6 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | KT3102EM | KT3102EM | Try BC549C, 2N5088 etc.; read from the layout by eye | |
| Q2 | KP103 | KP103 | P-channel JFET; Try J177, 2N5460 etc.; read from the layout by eye | |
| Q3 | KT3102EM | KT3102EM | Try BC549C, 2N5088 etc.; read from the layout by eye | |
| ICs 2 | ||||
| IC1 | 1485 | 1485 | legend: 1485, 4558; 3x KP140YD608 in original; read from the layout by eye | |
| IC2 | 1485 | 1485 | legend: 1485, 4558; 3x KP140YD608 in original; read from the layout by eye | |
| Potentiometers 5 | ||||
| Dist | B220K | B220k | Potentiometer | read from the layout by eye |
| Drive | B220K | B220k | Potentiometer | read from the layout by eye |
| Tone | B50K | B50k | Potentiometer | dual; read from the layout by eye |
| Resonance | B50K | B50k | Potentiometer | read from the layout by eye |
| Level | B50K | B50k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 50K | 50k | read from the layout by eye | |
| Switches 1 | ||||
| Switch | DPDT on/on | DPDT ON/ON | toggle; read from the layout by eye | |