125B · 4 knobs
PedalPCB· PCB432
Topographer Distortion
Based on the Intersound IVP Tube Voice Distortion
- Category
- Fuzz· OD / Distortion / Fuzz
- Controls
- Level · Gain · Bass · Treble
- Price
- $12.00in stock
From the vendor
Controls
• Level
• 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 47 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 22 | ||||
| R1 | 1M | 1M | Resistor, 1/4W | |
| R2 | 1K | 1k | Resistor, 1/4W | |
| R3 | 470K | 470k | Resistor, 1/4W | |
| R4 | 47K | 47k | Resistor, 1/4W | |
| R5 | 10K | 10k | Resistor, 1/4W | |
| R6 | 3K3 | 3.3k | Resistor, 1/4W | |
| R7 | 4K7 | 4.7k | Resistor, 1/4W | |
| R8 | 3K3 | 3.3k | Resistor, 1/4W | |
| R9 | 4K7 | 4.7k | Resistor, 1/4W | |
| R10 | 220K | 220k | Resistor, 1/4W | |
| R11 | 10K | 10k | Resistor, 1/4W | |
| R12 | 4K7 | 4.7k | Resistor, 1/4W | |
| R13 | 4K7 | 4.7k | Resistor, 1/4W | |
| R14 | 10K | 10k | Resistor, 1/4W | |
| R15 | 1K | 1k | Resistor, 1/4W | |
| R16 | 47R | 47 | Resistor, 1/4W | |
| R17 | 47K | 47k | Resistor, 1/4W | |
| R18 | 470K | 470k | Resistor, 1/4W | |
| R19 | 10K | 10k | Resistor, 1/4W | |
| R20 | 10K | 10k | Resistor, 1/4W | |
| R21 | 1K | 1k | Resistor, 1/4W | |
| R100 | 4K7 | 4.7k | Resistor, 1/4W | * LED current limiting resistor |
| Capacitors 13 | ||||
| C1 | 47n | 47n | Film capacitor, 7.2 x 2.5mm | |
| C2 | 47p | 47p | Ceramic capacitor | |
| C3 | 470p | 470p | Ceramic capacitor | |
| C4 | 47n | 47n | Film capacitor, 7.2 x 2.5mm | |
| C5 | 100p | 100p | Ceramic capacitor | |
| C6 | 10u | 10u | Electrolytic capacitor, 5mm | |
| C7 | 2n2 | 2.2n | Film capacitor, 7.2 x 2.5mm | |
| C8 | 10u | 10u | Electrolytic capacitor, 5mm | |
| C100 | 100u | 100u | Electrolytic capacitor, 5mm | |
| C101 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| C102 | 10u | 10u | Electrolytic capacitor, 5mm | |
| C103 | 100u | 100u | Electrolytic capacitor, 5mm | |
| C104 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| Diodes 1 | ||||
| D100 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| Transistors 3 | ||||
| Q1 | 2N5210 | 2N5210 | BJT transistor, NPN TO-92 | |
| Q2 | 2N5210 | 2N5210 | BJT transistor, NPN TO-92 | |
| Q3 | 2N5210 | 2N5210 | BJT transistor, NPN TO-92 | |
| ICs 3 | ||||
| IC1 | TL072 | TL072 | Dual op-amp, DIP8 | |
| IC2 | TL072 | TL072 | Dual op-amp, DIP8 | |
| IC100 | TC1044SCPA | TC1044SCPA | Charge pump IC, DIP8 | |
| Potentiometers 4 | ||||
| LEVEL | A100K | A100k | 16mm right-angle PCB mount pot | |
| GAIN | A50K | A50k | 16mm right-angle PCB mount pot | |
| TREBLE | B50K | B50k | 16mm right-angle PCB mount pot | |
| BASS | B50K | B50k | 16mm right-angle PCB mount pot | |
| Other 1 | ||||
| XFM1 | 42TL218RC | 42TL218RC | Audio Transformer | 10KCT/10KCT |