Making the Perfect Record: From Inscription to Impression in Early Magnetic Recording

Media

This path contains all media referenced in this essay.  

Contents of this path:

  1. Clark's 19th-Century Spool of Thread
  2. Clark's 19th-Century Thread-Spool
  3. Some Possible Forms of Phonograph (8 September 1888)
  4. Edison's 19th-Century Phonograph
  5. Poulsen's 20th-Century Telegraphone