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Zx81-bus extender

zxinfo-diy-electronics·zx81-bus-extender

Zx81-bus extender PCB layout, top view — open source board by zxinfo-diy-electronics

About the Zx81-bus extender PCB

Zx81-bus extender is an open source PCB design by zxinfo-diy-electronics, published on GitHub. It is a 2-layer board measuring 61.2 × 53.3 mm, with 6 components from 6 distinct parts.

By type, the board carries 3 connectors, 1 diode, 1 capacitor and 1 resistor.

It belongs with the retro computing designs in this gallery.

From the project

Expansion port board for ZX81

KiCad 8 files availble, in case you want to play around with it yourself - or Gerber files for producing PCBs.

BOM for v1: - [ ] 2 x Edge Connector for ZX81

- [ ] LED any color, SMD - [ ] 1K Ohm resistor, SMD - [ ] 100 nF capacitor, SMD

Zx81-bus extender bill of materials (BOM)

6 components, 6 distinct parts.

QtyPartRefs
1
Connector ZX81
J1
1
Connector ZX81
J2
1
Connector ZX81
J3
1
LED
D1
1
100nF
C1
1
1K
R1

Zx81-bus extender design files

The KiCad project lives in the zxinfo-diy-electronics/zx81-bus-extender repository on GitHub; these links point at the commit this page was built from.

Zx81-bus extender: common questions

How big is the Zx81-bus extender PCB?

The Zx81-bus extender measures 61.2 × 53.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Zx81-bus extender?

6 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Zx81-bus extender design files?

From the zxinfo-diy-electronics/zx81-bus-extender repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Zx81-bus extender design in my own project?

The repository has no license, so all rights stay with zxinfo-diy-electronics. Use it as a reference, and ask the author before reusing the design.

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