1590B · 4 knobs
El Rey de la Gloria Azul
Based on the Marshall Bluesbreaker· 19 other boards clone it
- Category
- Overdrive
- Difficulty
- Medium
- Price
- see vendorin stock
From the vendor
The Marshall Blues Breaker was a pedal introduced in 1991 with the purpose of simulating a vintage Marshall combo amp used by Eric Clapton. The pedal itself doesn’t produce much gain, but the way that it pushes the tubes brings out some amazing tones. JHS and Analogman used the Blues Breaker circuit as a basis for their own variants.
Schematic
The schematic is in the vendor's build document, page 8. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 34 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| R1 | 1M | 1M | ||
| R2 | 4k7 | 4.7k | ||
| R3 | 3k3 | 3.3k | ||
| R4 | 1M | 1M | ||
| R5 | 4k7 | 4.7k | ||
| R6 | 4k7 | 4.7k | ||
| R7 | 220k | 220k | ||
| R8 | 6k8 | 6.8k | ||
| R9 | 1k | 1k | ||
| R10 | 6k8 | 6.8k | ||
| R17 | 1M | 1M | ||
| R18 | 47k | 47k | ||
| R19 | 47k | 47k | ||
| Capacitors 10 | ||||
| C1 | 10nF | 10n | ||
| C2 | 10nF | 10n | ||
| C3 | 10nF | 10n | ||
| C4 | 47pF | 47p | ||
| C5 | 220nF | 220n | ||
| C6 | 220nF | 220n | ||
| C9 | 10nF | 10n | ||
| C10 | 10nF | 10n | ||
| C16 | 100nF | 100n | ||
| C18 | 100uF | 100u | ||
| Diodes 5 | ||||
| D5 | 1N914 | 1N914 | ||
| D6 | 1N914 | 1N914 | ||
| D7 | 1N914 | 1N914 | ||
| D8 | 1N914 | 1N914 | ||
| D11 | 1N400x | 1N400X | ||
| ICs 1 | ||||
| IC1 | TL072 | TL072 | ||
| Potentiometers 4 | ||||
| GAIN | B100K | B100k | Potentiometer | |
| PRES | B50K | B50k | Potentiometer | |
| TONE | B25K | B25k | Potentiometer | |
| VOL | A100K | A100k | Potentiometer | |
| Jacks & sockets 1 | ||||
| J201 | are | ARE | ||
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