Presenting the new Altair-Duino Experimenter version 2.5! This Altair 8800a simulator comes with a VT100 emulator (with VGA and USB keyboard support), DE9 serial connection, audio connection emulating a Processor Technology Music System card, and SD card slot for floppy drive/hard drive emulation.

While designing new functionality for my Altair-Duino Experimenter kit, I had to build several. Here are my assembled units as an 8800a replica. What was different on the 8800a (released in 1976)? They main visible difference was the flat toggle switches.

This is my newly-released "Experimenter" version 2.5 of my popular Altair-Duino kits. It includes an 5mm thick aluminum frame, clear acrylic back and rear panel including a VT100 emulator (with connectors for VGA and a USB keyboard), an RS232 serial port, audio jack (emulating the Processor Technology Music System), USB serial connector, SD card access, and power jack. The kit also includes a micro SD card with productivity software and games for Microsoft BASIC, Altair DOS, CP/M, and more. This is based on David Hansel's design published on Hackster.io in 2017.

This is a cycle-accurate recreation of the original Altair 8800. What does that mean? It means the Intel 8080 CPU is emulated, as is some of the basic I/O (disk drives, serial ports, etc.) but everything else is REAL Altair machine code and CP/M that was created more than 40 years ago!