Enclosure not stated · 6 knobs
Lell X-Metal
Based on the Lell X-Metal
- Category
- Distortion
- Build
- Vero· 30×25· 55 cuts, 27 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Distortion, Lell
From the post
An old russian Boss MT-2 derivate. The eq section and the general topology is pretty close to the original. But cap and resistor values differs quite a lot in most places and the gain control looks like it is borrowed from a Boss DS1.
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 49 rows
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Check before you build · 4 values the reader of this layout was not sure of
- 3K at column 28, rows G-I: the label sits low on the body beside the 47nF cap; reads 3K
- 750Ω (two, columns 3 and 5 at the top): printed clearly, unusual value
- 43K (three) and 20K (three): printed clearly, unusual values
- 27pF at column 16, rows U-W: printed clearly, unusual next to the 22pF parts
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| ×1 | 220Ω | 220 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×2 | 750Ω | 750 | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×2 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 3K | 3k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×6 | 4.7K | 4.7k | read from the layout by eye | |
| ×5 | 10K | 10k | read from the layout by eye | |
| ×3 | 20K | 20k | read from the layout by eye | |
| ×3 | 43K | 43k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×1 | 2M | 2M | read from the layout by eye | |
| Capacitors 18 | ||||
| ×1 | 10pF | 10p | read from the layout by eye | |
| ×3 | 22pF | 22p | read from the layout by eye | |
| ×1 | 27pF | 27p | read from the layout by eye | |
| ×1 | 1.5nF | 1.5n | read from the layout by eye | |
| ×1 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×3 | 10nF | 10n | read from the layout by eye | |
| ×1 | 15nF | 15n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 150nF | 150n | read from the layout by eye | |
| ×4 | 220nF | 220n | read from the layout by eye | |
| ×2 | 470nF | 470n | read from the layout by eye | |
| ×1 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×2 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×2 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N4148 | 1N4148 | D1, D2; read from the layout by eye | |
| D3 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | KT3102E | KT3102E | Try BC549C, 2N5088 etc.; read from the layout by eye | |
| Q2 | KT3102E | KT3102E | Try BC549C, 2N5088 etc.; read from the layout by eye | |
| Q3 | KT3102E | KT3102E | Try BC549C, 2N5088 etc.; read from the layout by eye | |
| ICs 4 | ||||
| IC1 | 4558 | 4558 | read from the layout by eye | |
| IC2 | 4558 | 4558 | read from the layout by eye | |
| IC3 | 4558 | 4558 | read from the layout by eye | |
| IC4 | 4558 | 4558 | read from the layout by eye | |
| Potentiometers 6 | ||||
| Drive | 100K | 100k | Potentiometer | taper unknown, probably linear; read from the layout by eye |
| Mid | 100K | 100k | Potentiometer | taper unknown, probably linear; read from the layout by eye |
| Freq | 100K | 100k | Potentiometer | dual; taper unknown, probably linear; read from the layout by eye |
| High | 10K | 10k | Potentiometer | taper unknown, probably linear; read from the layout by eye |
| Low | 10K | 10k | Potentiometer | taper unknown, probably linear; read from the layout by eye |
| Volume | 10K | 10k | Potentiometer | taper unknown, probably linear; read from the layout by eye |