2 layers210 × 104 mm
AmplifierBoard
dangrie158/AmpStation
A Class D audio amplifier in a n old Teufel Decoder Station 5 case
243 partsMIT
2 layers50 × 60 mm
Linear regulator practice
retrobuiltRyan/Linear-Regulator-Practice-PCBKiCAD 2-layer PCB project with three 78xx linear regulators
- Size
- 50 × 60 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 12
- Pads
- 64
- Tracks, vias
- 67, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Oct 2026
- Updated
- 28 Oct 2026
Overview
Linear regulator practice is an open-source printed circuit board by retrobuiltRyan, from the retrobuiltRyan/Linear-Regulator-Practice-PCB repository on GitHub, published under the BSD-3-Clause licence. It is a 2-layer board of 50 × 60 mm with 25 parts on 12 nets, routed with 67 tracks and 0 vias.
It is built around the L7805, L7809 and L7812. Its parts include 6 capacitors, 6 resistors, 4 diodes, 4 connectors and 3 ICs. It belongs with the power boards of this library.
Main components
3
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsL7809
TO-220-20℃~+125℃@(Tj) 1 1.5A 2V@(1.0A) 35V 58uV 5mA 66dB@(120Hz) 9V Fixed Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSPUOLOPVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
L7812
TO-220ST0℃~+125℃@(Tj) 1 1.2A 12V 2V@(1A) 30V 71dB@(120Hz) 76uV Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
kicad files/readme.md- download each file (raw).
- place in a folder of the same name.
- open with kiCAD version 10.0+
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 330 | Resistor_SMD:R_1206_3216Metric | R1, R2, R3, R4, R5, R6 |
| 4 | Screw_Terminal_2_P3.50mm | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal | J1, J2, J4, J5 |
| 3 | 0.1uF 50V | Capacitor_SMD:C_1206_3216Metric | C2, C4, C6 |
| 3 | 0.22uF 50V CER | Capacitor_SMD:C_1206_3216Metric | C1, C3, C5 |
| 3 | LED | LED_SMD:LED_1206_3216Metric | D1, D2, D3 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2 |
| 1 | D | Diode_SMD:D_SMC_Handsoldering | D4 |
| 1 | L7805 | Package_TO_SOT_SMD:TO-252-2 | U1 |
| 1 | L7809 | Package_TO_SOT_SMD:TO-252-2 | U2 |
| 1 | L7812 | Package_TO_SOT_SMD:TO-263-3_TabPin2 | U5 |
Questions
How big is the Linear regulator practice PCB?
It measures 50 × 60 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Linear regulator practice use?
25 parts, built around the L7805, L7809 and L7812. 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 Linear regulator practice KiCad files?
From the retrobuiltRyan/Linear-Regulator-Practice-PCB repository on GitHub, at the commit this page was made from: the board is kicad files/linear_regulator_practice.kicad_pcb and its schematic kicad files/linear_regulator_practice.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Linear regulator practice design in my own project?
Its repository publishes it under the BSD-3-Clause licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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