125B · 3 knobs
PedalPCB· PCB270
Submersible Preamp
Based on the ElectroniX / Zeibek Submarine Bass Guitar Preamp
- Category
- Fuzz· OD / Distortion / Fuzz
- Controls
- Volume · Tone · UltraBass
- Price
- $8.00in stock
- Tags
- 125B, Bass
From the vendor
Controls
• Volume
• Tone
• UltraBass (toggle switch)
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 26 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| R1 | 6K8 | 6.8k | Resistor, 1/4W | |
| R2 | 2K2 | 2.2k | Resistor, 1/4W | |
| R3 | 2M2 | 2.2M | Resistor, 1/4W | |
| R4 | 47K | 47k | Resistor, 1/4W | |
| R5 | 330K | 330k | Resistor, 1/4W | |
| R6 | 180K | 180k | Resistor, 1/4W | |
| R7 | 6K8 | 6.8k | Resistor, 1/4W | |
| R8 | 2K2 | 2.2k | Resistor, 1/4W | |
| R9 | 4M7 | 4.7M | Resistor, 1/4W | |
| R10 | 330R | 330 | Resistor, 1/4W | |
| R11 | 1M | 1M | Resistor, 1/4W | |
| R12 | 100K | 100k | Resistor, 1/4W | |
| R100 | 100R | 100 | Resistor, 1/4W | |
| CLR | 4K7 | 4.7k | Resistor, 1/4W | * LED current limiting resistor |
| Capacitors 6 | ||||
| C1 | 4u7 | 4.7u | Electrolytic capacitor, 5mm | |
| C2 | 2n2 | 2.2n | Film capacitor, 7.2 x 2.5mm | |
| C3 | 3n3 | 3.3n | Film capacitor, 7.2 x 2.5mm | |
| C4 | 100u | 100u | Electrolytic capacitor, 5mm | |
| C5 | 4u7 | 4.7u | Electrolytic capacitor, 5mm | |
| C100 | 220u | 220u | Electrolytic capacitor, 5mm | |
| Diodes 1 | ||||
| D100 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| Transistors 2 | ||||
| Q1 | 2N5457 | 2N5457 | JFET transistor, N-channel | |
| Q2 | 2N5457 | 2N5457 | JFET transistor, N-channel | |
| Potentiometers 2 | ||||
| VOLUME | B50K | B50k | 16mm right-angle PCB mount pot | |
| TONE | B250K | B250k | 16mm right-angle PCB mount pot | |
| Switches 1 | ||||
| ULTRABASS ON/ON | Toggle switch, SPDT | TOGGLE SWITCH, SPDT | 2-position (ON/ON) | |