CodeSurferDev Blog

ZX81/TIMEX-SINCLAIR 1000 Custom Mechanical Keyboard Prototype - Part 3

In this third post in the series, the mechanical keyboard gets updated from wired switches on a laser cut acrylic plate to an actual printed circuit board (PCB), and not just switches soldered directly to the PCB, but a hot-swappable mechanical keyboard! How many kids on your street have hot

ZX81/TIMEX-SINCLAIR 1000 3D Printed Case - Part 2

This is the second post in a series on designing & prototyping a ZX81/TS-1000 enlarged case, code named "Kilo-Zed". It covers the changes & improvements from version 1.0 to version 2.0. If you haven't already read Part 1 of this series, you may

Minimalist Recording Studio

This post is about a DIY minimalist digital music station that I designed and built. Feel free to use this post as a step by step guide to building one for yourself, or take inspiration from this to build something entirely different. Space Is a Premium I have commandeered one

ZX81/TIMEX-SINCLAIR 1000 3D Printed Case - Part 1

This post covers a collaboration between my brother and I to right a wrong that goes back over forty years! We join forces to develop a scaled up prototype ZX81 computer case that is large enough to fit a mechanical keyboard I built in two previous posts to replace the

Atari 800 - Part 2

This second installation of the series will cover one way to perform in-circuit testing of the electrolytic capacitors of the Atari 800 (or any electronics circuit board) and how to connect the computer to an LCD monitor using the "MONITOR" port rather than the RF cable intended to

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