HardLabs

ZX Spectrum Composite Modulator

Bambelweeny57·zxspectrum_issue3b·zx_composite_modulator/zx_spectrum_composite_mod.kicad_pcb

ZX Spectrum Composite Modulator PCB layout, top view — open source board by Bambelweeny57

About the ZX Spectrum Composite Modulator PCB

ZX Spectrum Composite Modulator is an open source PCB design by Bambelweeny57, published on GitHub. It is a 2-layer board measuring 45 × 29 mm, with 5 components from 5 distinct parts.

By type, the board carries 2 test points, 1 transistor, 1 connector and 1 resistor.

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 Composite Modulator bill of materials (BOM)

5 components, 5 distinct parts.

QtyPartRefs
1
BC547B
Q1
1
KLPX-0848A-2-B
J1
1
VID_IN
TP1
1
5V
TP2
1
100R
R1

ZX Spectrum Composite Modulator 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 Composite Modulator: common questions

How big is the ZX Spectrum Composite Modulator PCB?

The ZX Spectrum Composite Modulator measures 45 × 29 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ZX Spectrum Composite Modulator?

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

Where can I download the ZX Spectrum Composite Modulator 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 Composite Modulator 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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