SAGE of the 29th Air Division, Duluth,MN. Shots of the Q-7 computer. Rows of tubes taking up a whole floor but less power than your current laptop. This was the heart of the SAGE system that directed our interceptors. Maintenance control tracking status of radar sites.

Photos by Russ Lorenz who worked the SAGE system from one end to the other. Radar Sq with FPS-35, FPS-26, FST-2 FPS-6, FPS-18, ANGKA-5, FRT-49, Went on to Division Chief of Maintenance, and the FSQ-7, GSA-51. From there he went on to work the F-106 Delta Dart