125B
PedalPCB· PCB520
Argentum 1212 Preamp
Based on the Jackson Audio 1484 Twin Twelve
- Category
- Fuzz· OD / Distortion / Fuzz
- Price
- $12.00in stock
From the vendor
Controls
• Volume
• Gain
• Bass
• Treble
Specifications
• Designed for a 125B enclosure with top-mounted jacks
Documentation
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 43 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| R1 | 68K | 68k | Resistor, 1/4W | |
| R2 | 1M | 1M | Resistor, 1/4W | |
| R3 | 1K5 | 1.5k | Resistor, 1/4W | |
| R4 | 180K | 180k | Resistor, 1/4W | |
| R5 | 100K | 100k | Resistor, 1/4W | |
| R6 | 68K | 68k | Resistor, 1/4W | |
| R7 | 100K | 100k | Resistor, 1/4W | |
| R8 | 27K | 27k | Resistor, 1/4W | |
| R9 | 4K7 | 4.7k | Resistor, 1/4W | |
| R11 | 1M | 1M | Resistor, 1/4W | |
| R12 | 1K5 | 1.5k | Resistor, 1/4W | |
| R13 | 12K | 12k | Resistor, 1/4W | |
| R14 | 12K | 12k | Resistor, 1/4W | |
| R100 | 4K7 | 4.7k | Resistor, 1/4W | * LED current limiting resistor |
| R101 | 47R | 47 | Resistor, 1/4W | |
| Capacitors 14 | ||||
| C1 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C2 | 680p | 680p | Ceramic capacitor | |
| C3 | 10n | 10n | Film capacitor, 7.2 x 2.5mm | |
| C4 | 1n | 1n | Film capacitor, 7.2 x 2.5mm | |
| C5 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C6 | 10n | 10n | Film capacitor, 7.2 x 2.5mm | |
| C7 | 10n | 10n | Film capacitor, 7.2 x 2.5mm | |
| C8 | 2n2 | 2.2n | Film capacitor, 7.2 x 2.5mm | |
| C9 | 2n2 | 2.2n | Film capacitor, 7.2 x 2.5mm | |
| C100 | 100u | 100u | Electrolytic capacitor, 6.3mm | |
| C102 | 10u | 10u | Electrolytic capacitor, 6.3mm | � 25V minimum voltage |
| C103 | 10u | 10u | Electrolytic capacitor, 6.3mm | � 25V minimum voltage |
| C104 | 100u | 100u | Electrolytic capacitor, 6.3mm | � 25V minimum voltage |
| C105 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| Diodes 3 | ||||
| D100 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| D101 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| D102 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| Transistors 3 | ||||
| Q1 | J201 | J201 | JFET transistor, N-channel | |
| Q2 | J201 | J201 | JFET transistor, N-channel | |
| Q3 | J201 | J201 | JFET transistor, N-channel | |
| ICs 1 | ||||
| IC100 | TC1044SCPA | TC1044SCPA | Charge pump IC, DIP8 | |
| Potentiometers 4 | ||||
| VOLUME | A100K | A100k | 16mm right-angle PCB mount pot | |
| GAIN | A1M | A1M | 16mm right-angle PCB mount pot | |
| BASS | B1M | B1M | 16mm right-angle PCB mount pot | |
| TREBLE | B1M | B1M | 16mm right-angle PCB mount pot | |
| Trimmers 3 | ||||
| TRIM1 | 100K | 100k | Trimmer potentiometer, 3362P type | |
| TRIM2 | 100K | 100k | Trimmer potentiometer, 3362P type | |
| TRIM3 | 100K | 100k | Trimmer potentiometer, 3362P type | |