Radio-Electronics was a long-running magazine (1948–2003) that catered to electronics hobbyists, with a strong focus on construction projects, circuits, and emerging technologies. In the 1970s, as microprocessors became affordable, the magazine played a pivotal role in the hobbyist computer movement by publishing detailed build articles for computer-related devices. These projects helped demystify computing and inspired many to build their own systems.
The most famous computer project in Radio-Electronics was the Mark-8 minicomputer, designed by Jonathan Titus and featured on the July 1974 cover. It was the first article in a major publication detailing how to construct a complete computer using the Intel 8008 microprocessor—the world's first 8-bit CPU. The design used six circuit boards, cost around $120 in parts (plus $120 for the 8008 chip), and provided basic computing capabilities with 256 bytes of RAM (expandable). Readers could order a booklet with schematics and instructions for $5. The Mark-8 inspired user groups and follow-up articles, marking a key moment in personal computing history.
Radio-Electronics published numerous projects involving computers, terminals, and peripherals throughout the 1970s and 1980s. These often included full schematics, parts lists, and assembly instructions, allowing hobbyists to build functional devices.
These projects often tied into emerging microprocessors like the Intel 8008/8080, Motorola 6800, and Zilog Z80, with step-by-step builds that included PCB layouts and troubleshooting tips.
Radio-Electronics' computer projects bridged electronics and computing, encouraging readers to experiment with microprocessors. The Mark-8 article, in particular, predated the Altair 8800 and helped spark the personal computer revolution. Many readers went on to design their own systems or contribute to clubs like Homebrew. The magazine's focus on practical, affordable builds made advanced tech accessible, paving the way for the home computer boom.