HardLabs

ZX Spectrum 48K Composite MOD

Bambelweeny57·zxspectrum_issue3b·zx_composite_mod/Spectrum 48K Video Mod.kicad_pcb

ZX Spectrum 48K Composite MOD PCB layout, top view — open source board by Bambelweeny57

About the ZX Spectrum 48K Composite MOD PCB

ZX Spectrum 48K Composite MOD is an open source PCB design by Bambelweeny57, published on GitHub. It is a 2-layer board measuring 38 × 24 mm, with 9 components from 5 distinct parts.

By type, the board carries 3 connectors, 2 transistors, 2 capacitors and 2 resistors.

It belongs with the test & measurement designs in this gallery.

From the project

A faithful KiCad recreation of the Sinclair ZX Spectrum Issue 3B motherboard, reconstructed from original Gerber data and fully validated through multiple successful builds. This project preserves the 3B layout in an editable, open format and includes several companion PCBs desig

A faithful KiCad recreation of the Sinclair ZX Spectrum Issue 3B motherboard, reconstructed from original Gerber data and fully validated through multiple successful builds. This project preserves the 3B layout in an editable, open format and includes several companion PCBs designed to modernise, repair, or enhance the original Spectrum hardware.

The aim of this repository is to provide a clean, accurate, and reproducible version of the Issue 3B board for:

ZX Spectrum 48K Composite MOD bill of materials (BOM)

9 components, 5 distinct parts.

QtyPartRefs
1
2N3906
Q1
1
NPN
Q2
3
CONN_1
P1, P2, P3
2
100u
C1, C2
2
100R
R1, R2

ZX Spectrum 48K Composite MOD design files

The KiCad project lives in the Bambelweeny57/zxspectrum_issue3b repository on GitHub; these links point at the commit this page was built from.

ZX Spectrum 48K Composite MOD: common questions

How big is the ZX Spectrum 48K Composite MOD PCB?

The ZX Spectrum 48K Composite MOD measures 38 × 24 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ZX Spectrum 48K Composite MOD?

9 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the ZX Spectrum 48K Composite MOD design files?

From the Bambelweeny57/zxspectrum_issue3b repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ZX Spectrum 48K Composite MOD design in my own project?

The repository has no license, so all rights stay with Bambelweeny57. Use it as a reference, and ask the author before reusing the design.

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