Karl D. Swartzel Jr.

Karl Dale Swartzel Jr. (June 19, 1907 – April 23, 1998) was the inventor of the operational amplifier (or 'opamp'). He filed the patent for the 'summing amplifier' in 1941 when working at Bell Labs.[1]

References
  1. US 2401779, Karl D. Swartzel Jr., "Summing amplifier", published 11 June 1941, assigned to Bell Telephone Labor Inc.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.