S-100 ATX Motherboard for PC Cases

A Raspberry Pi Pico based USB-to-serial adapter for interfacing with the console of a PDP-11/05.

A FUSE module for accessing ancient Unix filesystems.

An RP2040-based ROM emulator

Flashlight bracket for the OK Industries Speed-Wrap wire wrap tool

This repository contains the KiCad files and the gerber files for the DuPAL boards.

Repository of antsdr firmware make

Build a SDR SW/MW/LW Receiver with a Raspberry Pi Pico

Versatile, cheap and portable USB to GPIB converter (USBTMC class based)

T568A to RJ11 Adapter

A versatile DIY serial terminal

Open source LXI tools

3D-Printable actuating cards for Western Electric wire-spring relays.

Firmware for the Mockingbird Telephone Exchange master controller

The original sources of MS-DOS 1.25 and 2.0, for reference purposes

The OASIS Operating System Users Group Archives

MS-DOS 4.0 fork meant to run on newer hardware

GRiD Compass 1100, 1101, 1109, 1121, 1129,1131, 1137, 1139 computer emulator.

A merge between https://github.com/OneOfEleven/uv-k5-firmware-custom and https://github.com/fagci/uv-k5-firmware-fagci-mod

PBX Ring Generator

Raspberry Pi Hat to control a Simplex synchronous clock.

In this Repository you can find my latest Nextion screens for HAM Radio, mostly for MMDVM

Flipper Zero Unleashed Firmware

Duplex variant of MMDVM_HS_Hat

MMDVM-Nextion-Screen-Layouts

firmware, software, hardware and documentation for the fulcrum S100 omnidisk controller

Outbound Protel dialer daemon for use with Asterisk softmodem

Backup of http://www.dunnington.info/public/DECROMs/