Hobbyist Builds Working 8-Bit Computer From 460 Vintage Vacuum Tubes
An electronics enthusiast named Mike built the Tube Computer MK3, a wall-mounted 8-bit machine using 460 recycled Soviet-era 6N3P vacuum tubes from the 1950s and germanium diodes across 46 circuit boards. The system runs custom software and drives a flip-digit display entirely through discrete tube logic, without any microprocessor or integrated circuit. It's his third such vacuum-tube computer built this decade, documented on Hackaday.