Key-Tap: A hardware configurator for the Amiga 500

Update 2021/03: GIT repository available! In this post I want to provide the details of an older project I published¬† in 2014 on a1k.org.¬†This little piece of hardware is used to provide some means for configuring an Amiga 500 with the keyboard. This is to replace at least some of the small switches that are… Continue reading Key-Tap: A hardware configurator for the Amiga 500

Repairing an A501 Trapdoor expansion for Amiga 500

This post describes how I repaired an A501 Trapdoor memory expansion. I explain how to diagnose the error and some tricks how this can be done with just an Amiga 500. The symptoms are that the Amiga does not boot and indicates a yellow screen.

Changing the battery on a memory expanstion to a CR2032 battery

The batteries used for the backup voltage for the real time clocks and SRAM settings in vintage computers are a real nuisance today. These were used in nearly all personal computers back in the 80s and beginning of the 90s and every single one started to leak and damage the PCB of the surrounding system.… Continue reading Changing the battery on a memory expanstion to a CR2032 battery

Electronics Projects

This Blog will document some of my Electronic Projects I am working on or have finished. I am mainly interested in creating new hardware for vintage computers to improve the fun and usability.