125B · 3 knobs
From the vendor
Controls
• Volume
• Drive
• Tone
Details
• Designed for a 125B enclosure with top-mounted jacks
Schematic
The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 57 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 27 | ||||
| R1 | 2M2 | 2.2M | Resistor, 1/4W | |
| R2 | 1K | 1k | Resistor, 1/4W | |
| R3 | 510K | 510k | Resistor, 1/4W | |
| R4 | 10K | 10k | Resistor, 1/4W | |
| R5 | 10K | 10k | Resistor, 1/4W | |
| R6 | 2K2 | 2.2k | Resistor, 1/4W | |
| R7 | 4K7 | 4.7k | Resistor, 1/4W | |
| R8 | 4K7 | 4.7k | Resistor, 1/4W | |
| R9 | 51K | 51k | Resistor, 1/4W | |
| R10 | 2K2 | 2.2k | Resistor, 1/4W | |
| R11 | 4K7 | 4.7k | Resistor, 1/4W | |
| R12 | 1K | 1k | Resistor, 1/4W | |
| R13 | 10K | 10k | Resistor, 1/4W | |
| R14 | 2K2 | 2.2k | Resistor, 1/4W | |
| R15 | 220R | 220 | Resistor, 1/4W | |
| R16 | 4K7 | 4.7k | Resistor, 1/4W | |
| R17 | 2K2 | 2.2k | Resistor, 1/4W | |
| R18 | 1K | 1k | Resistor, 1/4W | |
| R19 | 4K7 | 4.7k | Resistor, 1/4W | |
| R20 | 1K | 1k | Resistor, 1/4W | |
| R21 | 510K | 510k | Resistor, 1/4W | |
| R22 | 10K | 10k | Resistor, 1/4W | |
| R23 | 100R | 100 | Resistor, 1/4W | |
| R24 | 10K | 10k | Resistor, 1/4W | |
| R100 | 10K | 10k | Resistor, 1/4W | |
| R101 | 10K | 10k | Resistor, 1/4W | |
| R102 | 4K7 | 4.7k | Resistor, 1/4W | * LED current limiting resistor |
| Capacitors 14 | ||||
| C1 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C2 | 1u | 1u | Electrolytic capacitor, 5mm | |
| C3 | 47n | 47n | Film capacitor, 7.2 x 2.5mm | |
| C4 | 51p | 51p | Ceramic capacitor | |
| C5 | 51p | 51p | Ceramic capacitor | |
| C6 | 220n | 220n | Film capacitor, 7.2 x 5.0mm | |
| C7 | 220n | 220n | Film capacitor, 7.2 x 5.0mm | |
| C8 | 51p | 51p | Ceramic capacitor | |
| C9 | 1u | 1u | Electrolytic capacitor, 5mm | |
| C10 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| C11 | 10u | 10u | Electrolytic capacitor, 5mm | |
| C100 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| C101 | 47u | 47u | Electrolytic capacitor, 5mm | |
| C102 | 47u | 47u | Electrolytic capacitor, 5mm | |
| Diodes 3 | ||||
| D1 | 1N4148 | 1N4148 | Signal diode, DO-35 | |
| D2 | 1N4148 | 1N4148 | Signal diode, DO-35 | |
| D100 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| Transistors 10 | ||||
| Q1 | 2SC1815 | 2SC1815 | BJT transistor, NPN TO-92 | |
| Q2 | 2N5457 | 2N5457 | JFET transistor, N-channel | |
| Q3 | 2N5457 | 2N5457 | JFET transistor, N-channel | |
| Q4 | 2N3906 | 2N3906 | BJT transistor, PNP TO-92 | |
| Q5 | 2N3904 | 2N3904 | BJT transistor, NPN TO-92 | |
| Q6 | 2N5457 | 2N5457 | JFET transistor, N-channel | |
| Q7 | 2N5457 | 2N5457 | JFET transistor, N-channel | |
| Q8 | 2N3906 | 2N3906 | BJT transistor, PNP TO-92 | |
| Q9 | 2N3904 | 2N3904 | BJT transistor, NPN TO-92 | |
| Q10 | 2SC1815 | 2SC1815 | BJT transistor, NPN TO-92 | |
| Potentiometers 3 | ||||
| VOLUME | B100K | B100k | 16mm right-angle PCB mount pot | |
| TONE | W20K | W20k | 16mm right-angle PCB mount pot | |
| DRIVE | A500K | A500k | 16mm right-angle PCB mount pot | |