2 layers283 × 96 mm
2 layers220 × 160 mm
Buffer
ibm2030/EDUC813EDUC-8 recreation by Gwyllym Suter
- Size
- 220 × 160 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 75
- Pads
- 222
- Tracks, vias
- 617, 90
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 5 Mar 2023
- Updated
- 28 May 2026
Overview
Buffer is an open-source printed circuit board by ibm2030, from the ibm2030/EDUC8 repository on GitHub. It is a 2-layer board of 220 × 160 mm with 25 parts on 75 nets, routed with 617 tracks and 90 vias.
It is built around the 74LS37P-E and 74LS05P-E. Its parts include 7 ICs, 5 capacitors, 5 resistors and 5 connectors.
Main components
2README
README.mdEDUC8
EDUC-8 recreation by Gwyllym Suter
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 74LS37 | Package_DIP:DIP-14_W7.62mm_LongPads | U1, U2, U3, U4, U5, U7 |
| 5 | R_Small | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | R23, R24, R25, R26, R27 |
| 2 | 16-way-pcb-edge-Educ-8-connectors | Connector_PCBEdge:PCB_16pin | J1, J2 |
| 2 | 470nF | Capacitor_THT:C_Disc_D10.5mm_W5.0mm_P5.00mm | C3, C4 |
| 2 | 470nF | Capacitor_THT:C_Disc_D10.5mm_W5.0mm_P7.50mm | C1, C2 |
| 2 | Card_handle | EDUC-8:Card_handle | H1, H2 |
| 2 | Conn_02x13_Odd_Even | Connector_IDC:IDC-Header_2x13_P2.54mm_Horizontal | J4, J5 |
| 1 | 100uF | Capacitor_THT:CP_Axial_L20.0mm_D10.0mm_P26.00mm_Horizontal | C5 |
| 1 | 74LS05 | Package_DIP:DIP-14_W7.62mm_LongPads | U6 |
| 1 | DIP SOCKET | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | J3 |
The 24 most common of 25 parts.
Questions
How big is the Buffer PCB?
It measures 220 × 160 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Buffer use?
25 parts, built around the 74LS37P-E and 74LS05P-E. 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 Buffer KiCad files?
From the ibm2030/EDUC8 repository on GitHub, at the commit this page was made from: the board is Buffer/Buffer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Buffer design in my own project?
Its repository states no licence, so its author keeps all rights: ask ibm2030 before reusing the design.
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