keyboard4a99 is an open source input device published by visrealm, with its design files available on GitHub. In the maintainer's words: “Cherry MX compatible upgrade for your Texas Instruments TI-99/4A Mitsumi mylar keyboard.”
It has 24 stars and 1 forks on GitHub, with the last commit 3 months ago.
What’s in the repository
- Schematic and board source files published by the author
- A project site with further documentation
- Full revision history, so you can see how the board changed between versions
Licence and reuse
Released under CERN-OHL-W-2.0. Read the license file in the repository before reusing the design commercially; the terms are not one of the common permissive or copyleft templates.
Opening it in ProtoFlow
The repository does not clearly state which EDA tool produced the files — check the repository contents before planning an import.
- 01 Select “Edit in ProtoFlow” for opening options. Download the source and open supported KiCad files in the app. Other EDA formats may need conversion.
- 02 Work in the imported local copy: rename nets, swap parts against live distributor stock, re-route, or strip it back to the sub-circuit you actually need.
- 03 Keep the original licence and credit visrealm if you publish or sell what you build from it.
This page indexes a public repository. The design, the files and the copyright belong to visrealm; ProtoFlow does not host, mirror or verify them. Details are read from GitHub and refreshed periodically — check the repository for the current state of the project.
