Electronics Technology and Devices Laboratory

The Electronics Technology and Devices Laboratory (ETDL) was a research facility under the U.S. Army Materiel Command that specialized in developing and integrating critical electronic technologies, from high frequency devices to tactical power sources, into Army systems. Located at Fort Monmouth, New Jersey, ETDL served as the U.S. Army’s central laboratory for electronics research from 1971 to 1992.

Source: Wikipedia — Electronics Technology and Devices Laboratory (CC BY-SA 4.0)