2 layers122.6 × 52.7 mm
Poly88 rom replacement board
abzman/s100-PCBs
replica PCBs including backplanes and interface cards
13 parts3Unlicense
2 layers365.1 × 102.7 mm
Poly88 backplane rev e
abzman/s100-PCBs3replica PCBs including backplanes and interface cards
- Size
- 365.1 × 102.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 107
- Pads
- 754
- Tracks, vias
- 2,621, 7
- Pours
- 14
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 24 Oct 2022
- Updated
- 22 Apr 2026
Overview
Poly88 backplane rev e is an open-source printed circuit board by abzman, from the abzman/s100-PCBs repository on GitHub, published under the Unlicense licence. It is a 2-layer board of 365.1 × 102.7 mm with 33 parts on 107 nets, routed with 2,621 tracks and 7 vias.
Its parts include 13 connectors, 8 diodes, 7 resistors, 4 capacitors and 1 transistor.
README
README.mds100-PCBs
replica PCBs including backplanes and interface cards
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1N4003 | Diode_THT:D_DO-41_SOD81_P12.70mm_Horizontal | D3, D4, D5, D6, D8 |
| 5 | 346-100-520-802 | Evan's misc parts:346100520802 | J5, J6, J7, J8, J9 |
| 4 | Conn_01x01 | Connector_Pin:Pin_D1.0mm_L10.0mm | J3, J11, J12, J13 |
| 2 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R5 |
| 2 | 2.2K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | R1, R2 |
| 2 | 60S05 | Evan's misc parts:D_DO-201AD_P18.83mm_Horizontal | D1, D2 |
| 1 | 0.1uF | Capacitor_THT:C_Rect_L11.0mm_W3.4mm_P10.00mm_MKT | C4 |
| 1 | 1000uF | Capacitor_THT:CP_Axial_L67.0mm_D23.0mm_P75.00mm_Horizontal | C2 |
| 1 | 17000uF | Evan's misc parts:CP_Radial_D35.0mm_P12.90mm_SnapIn | C3 |
| 1 | 1K | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R6 |
| 1 | 1N4148 | Evan's misc parts:D_DO-35_SOD27_P15.24mm_Horizontal | D7 |
| 1 | 2000uF | Capacitor_THT:CP_Axial_L67.0mm_D26.0mm_P75.00mm_Horizontal | C1 |
| 1 | 2N5449 | Package_TO_SOT_THT:TO-92_Wide | Q1 |
| 1 | 330 | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P15.24mm_Horizontal | R3 |
| 1 | 470 | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R7 |
| 1 | Card Edge in | Evan's misc parts:BUS_S100_M | J4 |
| 1 | Power In | Evan's misc parts:5 pin inline molex 0.93 | J1 |
| 1 | Switch and Light | Connector_Molex:Molex_KK-396_A-41791-0004_1x04_P3.96mm_Vertical | J2 |
| 1 | edge mount connector | Evan's misc parts:BUS_S100_M | J10 |
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Questions
How big is the Poly88 backplane rev e PCB?
It measures 365.1 × 102.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Poly88 backplane rev e use?
33 parts. 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 Poly88 backplane rev e KiCad files?
From the abzman/s100-PCBs repository on GitHub, at the commit this page was made from: the board is poly88 backplane rev e/poly88 backplane rev e.kicad_pcb and its schematic VTI keyboard daughterboard rev 1.0/VTI parallel v1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Poly88 backplane rev e design in my own project?
Its repository publishes it under the Unlicense licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).