Portable Commutator
The Portable Commutator was a telecommunications device that was used by the military during World War I. It was manufactured by Northern Electric Company.[1] It was used as a one-wire telegraphic switchboard.[2]

Northern Electric Portable Commutator
References
- Douglas Hunter (January 5, 2018). "Nortel". The Canadian Encyclopedia. Retrieved February 15, 2021.
- Savid Vye (May 15, 2012). "Goliath's Fall". Microwave Journal. Retrieved February 15, 2021.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.