Enclosure not stated · 3 knobs
Schumann LionVerified
Based on the Schumann Lion· 2 other boards clone it
From the post
Here is a layout for the rare Schumann Lion distortion.
Original brief description:
"The LION is a distortion device and a clean booster with two complete circuits that can be mixed independently.
Has a bypass footswitch and boost footswitch that gives extra distortion.
Great for bass -- distortion that doesn't cut out the low end.
Great for guitar -- minor chords retain clean harmonics -- you can get great distortion but still hear definition of notes."
You can find original DIY thread and schematic here.
30/11/2017 Layouts Updated! Changed Drive pot to B1M and added 470uF capacitor.
If you want to use Mark's Bipolar Voltage Converter:
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 27 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this layout was not sure of
- 10u at left below the electrolytic 10u: drawn as a red disc (non-polarised) rather than a can, value read as 10u; printed clearly, unusual for that cap type
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×2 | 1M | 1M | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 150K | 150k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×1 | 100R | 100 | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 10M | 10M | read from the layout by eye | |
| ×2 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 9 | ||||
| ×3 | 100n | 100n | read from the layout by eye | |
| ×1 | 47n | 47n | read from the layout by eye | |
| ×2 | 47p | 47p | read from the layout by eye | |
| ×1 | 10p | 10p | read from the layout by eye | |
| ×1 | 100p | 100p | read from the layout by eye | |
| ×1 | 10u | 10u | drawn as a non-polarised disc, not a can; read from the layout by eye | |
| ×2 | 10u | 10u | electrolytic; read from the layout by eye | |
| ×4 | 100u | 100u | electrolytic; read from the layout by eye | |
| ×1 | 470u | 470u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×2 | 1N4004 | 1N4004 | D1, D2; read from the layout by eye | |
| ICs 4 | ||||
| ×1 | TL071 | TL071 | read from the layout by eye | |
| ×1 | 4049UB | 4049UB | read from the layout by eye | |
| ×1 | 7812 | 7812 | regulator; read from the layout by eye | |
| ×1 | 7912 | 7912 | regulator; read from the layout by eye | |
| Potentiometers 3 | ||||
| Clean | A25K | A25k | Potentiometer | read from the layout by eye |
| Level | A10K | A10k | Potentiometer | read from the layout by eye |
| Drive | B1M | B1M | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Boost | DPDT | DPDT | footswitch; read from the layout by eye | |
Other boards based on the Schumann Lion
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