2 layers337.6 × 133 mm
2 layers240.6 × 143.2 mm
Operators
alfpedraza/electronicsKiCad Electronics Projects
- Size
- 240.6 × 143.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 156
- Nets
- 122
- Pads
- 368
- Tracks, vias
- 1,028, 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Jul 2022
- Updated
- 2 Sep 2025
Overview
Operators is an open-source printed circuit board by alfpedraza, from the alfpedraza/electronics repository on GitHub. It is a 2-layer board of 240.6 × 143.2 mm with 156 parts on 122 nets, routed with 1,028 tracks and 2 vias.
It is built around the BC547 and BC558. Its parts include 90 resistors, 41 transistors, 13 switches, 10 diodes and 2 connectors.
Main components
2README
README.mdelectronics
KiCad Electronics Projects
Parts
156| Qty | Value | Footprint | References |
|---|---|---|---|
| 40 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10, R13, R20, R23, R24, R26, R28, R29, R31, R33, R34, R35, R37, R38, R39, R41 +24 |
| 40 | BC547 | Package_TO_SOT_THT:TO-92_Wide | Q1, Q2, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q21, Q22, Q23 +24 |
| 25 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3, R4, R6, R14, R16, R17, R18, R19, R36, R40, R42, R43, R45, R46, R63 +9 |
| 13 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R11, R12, R21, R50, R53, R56, R59, R62, R70, R81, R83, R87 |
| 11 | SW_SPDT | Switches:SW_500SSP1S2M2QEA | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW9, SW11, SW12, SW13 |
| 10 | LED | LED_THT:LED_D5.0mm | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 |
| 7 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R15, R22, R84, R88, R89, R90 |
| 5 | 4.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9, R25, R27, R30, R32 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW8, SW10 |
| 2 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J1, J2 |
| 1 | BC558 | Package_TO_SOT_THT:TO-92_Wide | Q3 |
Questions
How big is the Operators PCB?
It measures 240.6 × 143.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Operators use?
156 parts, built around the BC547 and BC558. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Operators KiCad files?
From the alfpedraza/electronics repository on GitHub, at the commit this page was made from: the board is operators/operators.kicad_pcb and its schematic digital-clocks/clock-clock-signal.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Operators design in my own project?
Its repository states no licence, so its author keeps all rights: ask alfpedraza before reusing the design.
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