Hewlett-Packard AC/DC transformer power pack model # 82002A, 1977

Hewlett-Packard AC/DC transformer power pack model # 82002A, 1977, WBC Box 4 Item 67, Box: 4. William Bradley Calculator Collection, WBC. National Center for Atmospheric Research (NCAR) Archives. https://aspace.archives.ucar.edu/repositories/2/archival_objects/9461 Accessed June 15, 2026.