125B
From the vendor
Overview
The PedalPCB Basic Relay Bypass module uses common components for a simple and economical solution to relay bypass switching.
Footswitch, relay, and other components are not included
Features
• Uses inexpensive non-latching relay
• No microcontroller is required
• Grounds PCB input in bypass to reduce noise
• I/O pinout directly interfaces with most PedalPCB projects
Documentation
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 14 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| R1 | 10K | 10k | Resistor, 1/4W | |
| R2 | 10K | 10k | Resistor, 1/4W | |
| R3 | 100K | 100k | Resistor, 1/4W | |
| R4 | 10K | 10k | Resistor, 1/4W | |
| Capacitors 3 | ||||
| C1 | 1u | 1u | Ceramic capacitor, MLCC | |
| C2 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| C3 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| Diodes 2 | ||||
| D1 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| D2 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| Transistors 1 | ||||
| Q1 | 2N3904 | 2N3904 | BJT transistor, NPN TO-92 | |
| ICs 2 | ||||
| IC1 | NE555 | NE555 | 555 Timer Integrated Circuit | |
| IC2 | 78L09 | 78L09 | Positive Voltage Regulator, +9V | |
| Potentiometers 1 | ||||
| PCB | Assembly | ASSEMBLY | S | chematic |
| Other 1 | ||||
| K1 | A-4.5W-K | A-4.5W-K | Non-latching 4.5V relay | |