125B · 3 knobs
From the vendor
Controls
• Octave Up
• Direct
• Bright – Toggle Switch
Specifications
• Designed for a 125B enclosure with top-mounted jacks
Documentation
Schematic
The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 58 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 30 | ||||
| R1 | 1M | 1M | Resistor, 1/4W | |
| R2 | 10K | 10k | Resistor, 1/4W | |
| R3 | 1M | 1M | Resistor, 1/4W | |
| R4 | 10K | 10k | Resistor, 1/4W | |
| R5 | 1M | 1M | Resistor, 1/4W | |
| R6 | 2K | 2k | Resistor, 1/4W | |
| R7 | 10K | 10k | Resistor, 1/4W | |
| R8 | 22K | 22k | Resistor, 1/4W | |
| R9 | 330K | 330k | Resistor, 1/4W | |
| R10 | 330K | 330k | Resistor, 1/4W | |
| R11 | 10K | 10k | Resistor, 1/4W | |
| R12 | 10K | 10k | Resistor, 1/4W | |
| R13 | 3K3 | 3.3k | Resistor, 1/4W | |
| R14 | 100K | 100k | Resistor, 1/4W | |
| R15 | 33K | 33k | Resistor, 1/4W | |
| R16 | 100K | 100k | Resistor, 1/4W | |
| R17 | 100K | 100k | Resistor, 1/4W | |
| R18 | 47K | 47k | Resistor, 1/4W | |
| R19 | 330K | 330k | Resistor, 1/4W | |
| R20 | 4K7 | 4.7k | Resistor, 1/4W | |
| R21 | 4K7 | 4.7k | Resistor, 1/4W | |
| R22 | 100K | 100k | Resistor, 1/4W | |
| R23 | 100K | 100k | Resistor, 1/4W | |
| R24 | 1M | 1M | Resistor, 1/4W | |
| R25 | 10K | 10k | Resistor, 1/4W | |
| R26 | 100K | 100k | Resistor, 1/4W | |
| R27 | 1K | 1k | Resistor, 1/4W | |
| R100 | 10K | 10k | Resistor, 1/4W | |
| R101 | 12K | 12k | Resistor, 1/4W | |
| CLR | 4K7 | 4.7k | Resistor, 1/4W | * LED current limiting resistor |
| Capacitors 15 | ||||
| C1 | 10n | 10n | Film capacitor, 7.2 x 2.5mm | |
| C2 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C3 | 10u | 10u | Electrolytic capacitor, 5mm | |
| C4 | 10n | 10n | Film capacitor, 7.2 x 2.5mm | |
| C5 | 2n2 | 2.2n | Film capacitor, 7.2 x 2.5mm | |
| C6 | 220p | 220p | Ceramic capacitor | |
| C7 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C8 | 220n | 220n | Film capacitor, 7.2 x 5.0mm | |
| C9 | 4n7 | 4.7n | Film capacitor, 7.2 x 2.5mm | |
| C10 | 100p | 100p | Ceramic capacitor | |
| C11 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C12 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C13 | 1u | 1u | Electrolytic capacitor, 5mm | |
| C100 | 100u | 100u | Electrolytic capacitor, 5mm | |
| C101 | 100u | 100u | Electrolytic capacitor, 5mm | |
| Diodes 5 | ||||
| D1 | 1N914 | 1N914 | Signal diode, DO-35 | |
| D2 | 1N914 | 1N914 | Signal diode, DO-35 | |
| D3 | BAT46 | BAT46 | Schottky diode, DO-35 | |
| D4 | BAT46 | BAT46 | Schottky diode, DO-35 | |
| D100 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| Transistors 2 | ||||
| Q1 | 2N5457 | 2N5457 | JFET transistor, N-channel | |
| Q2 | MPSA13 | MPSA13 | Darlington transistor, NPN TO-92 | |
| ICs 3 | ||||
| IC1 | TL072 | TL072 | Dual op-amp, DIP8 | |
| IC2 | TL072 | TL072 | Dual op-amp, DIP8 | |
| IC3 | TL072 | TL072 | Dual op-amp, DIP8 | |
| Potentiometers 2 | ||||
| UP | B100K | B100k | 16mm right-angle PCB mount pot | |
| DIRECT | B100K | B100k | 16mm right-angle PCB mount pot | |
| Switches 1 | ||||
| BRIGHT | DPDT | DPDT | Toggle switch, DPDT | 2-position (ON/ON) |