125B
From the vendor
Overview
The PedalPCB Basic Relay Bypass module uses common components for a simple and economical solution to relay bypass switching. A latching relay is utilized to minimize power consumption.
Footswitch, relay, and other components are not included
Features
• Uses latching relay to minimize power consumption
• 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 18 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| R1 | 10K | 10k | Resistor, 1/4W | |
| R2 | 10K | 10k | Resistor, 1/4W | |
| R3 | 100K | 100k | Resistor, 1/4W | |
| R4 | 10K | 10k | Resistor, 1/4W | |
| R5 | 10K | 10k | Resistor, 1/4W | |
| R6 | 10K | 10k | Resistor, 1/4W | |
| Capacitors 4 | ||||
| C1 | 1u | 1u | Ceramic capacitor, MLCC | |
| C2 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| C3 | 100u | 100u | Electrolytic capacitor, 5mm | |
| C4 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| Transistors 4 | ||||
| Q1 | 2N3904 | 2N3904 | BJT transistor, NPN TO-92 | |
| Q2 | 2N3904 | 2N3904 | BJT transistor, NPN TO-92 | |
| Q3 | 2N3906 | 2N3906 | BJT transistor, PNP TO-92 | |
| Q4 | 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 | TQ2-L-5V | TQ2-L-5V | Single-Coil Latching Relay, 5V | |