125B · 1 knob
From the vendor
Controls
• Volume
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 27 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| R1 | 22K | 22k | Resistor, 1/4W | |
| R2 | 47K | 47k | Resistor, 1/4W | |
| R3 | 1M | 1M | Resistor, 1/4W | |
| R4 | 1M | 1M | Resistor, 1/4W | |
| R5 | 100K | 100k | Resistor, 1/4W | |
| R6 | 47K | 47k | Resistor, 1/4W | |
| R7 | 6K8 | 6.8k | Resistor, 1/4W | |
| R8 | 4K7 | 4.7k | Resistor, 1/4W | |
| R9 | 3K3 | 3.3k | Resistor, 1/4W | |
| R10 | 1K2 | 1.2k | Resistor, 1/4W | |
| R100 | 4K7 | 4.7k | Resistor, 1/4W | *LED current limiting resistor |
| Capacitors 8 | ||||
| C1 | 1u | 1u | Electrolytic capacitor, 5mm | 25VDC minimum |
| C2 | 1u | 1u | Electrolytic capacitor, 5mm | 25VDC minimum |
| C3 | 1u | 1u | Electrolytic capacitor, 5mm | 25VDC minimum |
| C4 | 330p | 330p | Ceramic disc capacitor | |
| C5 | 1u | 1u | Electrolytic capacitor, 5mm | 25VDC minimum |
| C6 | 100u | 100u | Electrolytic capacitor, 5mm | |
| C100 | 10u | 10u | Electrolytic capacitor, 5mm | 25VDC minimum |
| C101 | 10u | 10u | Electrolytic capacitor, 5mm | 25VDC minimum |
| 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 | 2N5088 | 2N5088 | BJT transistor, NPN TO-92 | |
| Q2 | 2N5088 | 2N5088 | BJT transistor, NPN TO-92 | |
| Q3 | 2N5088 | 2N5088 | BJT transistor, NPN TO-92 | |
| ICs 1 | ||||
| IC100 | TC1044SCPA | TC1044SCPA | Charge pump IC, DIP8 | |
| Potentiometers 1 | ||||
| VOLUME | B100K | B100k | 16mm right-angle PCB mount pot | |
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