Category:Alexanderson and Goldschmidt alternators

From Wikimedia Commons, the free media repository
Jump to: navigation, search

This category is for specialized radio frequency rotating machines used as early radio transmitters from about 1900 to the 1930s. It includes the Alexanderson alternator, Goldschmidt alternator, and alternators designed by Joly, Meissner, Arco, and Fessenden.

Media in category "Alexanderson and Goldschmidt alternators"

The following 18 files are in this category, out of 18 total.