Energizing a vacuum-tube flip-flop module from a 1948 IBM system

The blog post by Ken Shirriff explores the intricacies of a vacuum-tube flip-flop module from the IBM 604 Electronic Calculating Punch, detailing its design, functionality, and historical significance in computing. It highlights the innovative use of vacuum tubes and the fundamental principles behind the TR-3 trigger module, which was essential for creating stable digital states in early computing machinery.