125B · 3 knobs
PedalPCB· PCB151
Awful Waffle
Based on the Crowther Hotcake· 12 other boards clone it
- Category
- Distortion
- Price
- $8.00in stock
- Tags
- 125B, 125B 3-Knob (Type 1)
From the vendor
Controls
• Volume – Controls the overall output volume
• Drive – Controls the amount of signal gain / distortion
• Presence – Controls upper mid-range frequencies
Details
• Updated for true-bypass operation
• Designed for a 125B enclosure with top-mounted jacks
The company, product and service names used in this web site are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners. This product is not manufactured or distributed by Crowther Audio, maker of the Hot Cake.
PedalPCB is not affiliated with Crowther Audio.
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 26 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| R1 | 1M | 1M | Resistor, 1/4W | |
| R2 | 1M | 1M | Resistor, 1/4W | |
| R3 | 10K | 10k | Resistor, 1/4W | |
| R4 | 220R | 220 | Resistor, 1/4W | |
| R5 | 100K | 100k | Resistor, 1/4W | |
| R6 | 10K | 10k | Resistor, 1/4W | |
| R7 | 1K | 1k | Resistor, 1/4W | |
| R8 | 10K | 10k | Resistor, 1/4W | |
| R9 | 100K | 100k | Resistor, 1/4W | |
| R100 | 220R | 220 | Resistor, 1/4W | |
| R101 | 82K | 82k | Resistor, 1/4W | |
| R102 | 100K | 100k | Resistor, 1/4W | |
| CLR | 4K7 | 4.7k | Resistor, 1/4W | * LED current limiting resistor |
| Capacitors 8 | ||||
| C1 | 10n | 10n | Film capacitor, 7.2 x 2.5mm | |
| C2 | 10u | 10u | Electrolytic capacitor, 5mm | |
| C3 | 82n | 82n | Film capacitor, 7.2 x 2.5mm | |
| C4 | 470p | 470p | Ceramic capacitor | |
| C5 | 22n | 22n | Film capacitor, 7.2 x 2.5mm | |
| C6 | 56n | 56n | Film capacitor, 7.2 x 2.5mm | |
| C100 | 100u | 100u | Electrolytic capacitor, 5mm | |
| C101 | 10u | 10u | Electrolytic capacitor, 5mm | |
| Diodes 1 | ||||
| D100 | 8V2 | 8V2 | Zener diode 1/2W, 9.1V | |
| ICs 1 | ||||
| IC1 | LM741 | LM741 | Single op-amp, DIP8 | |
| Potentiometers 3 | ||||
| VOLUME | A50K | A50k | 16mm right-angle PCB mount pot | |
| PRESENCE | B22K | B22k | 16mm right-angle PCB mount pot | |
| DRIVE | C50K | C50k | 16mm right-angle PCB mount pot | |
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