Difference between revisions of "EE-1"

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The EE-1 Buzzerphone maked '''secret'''telegraphic communication possible, while non-secret telephone conversation could be carried on simultaneously over the same circuit.
 
[[File:EE-1 Buzzerphone.jpg]]
 
[[File:EE-1 Buzzerphone.jpg]]
  

Revision as of 13:19, 1 November 2015

The EE-1 Buzzerphone maked secrettelegraphic communication possible, while non-secret telephone conversation could be carried on simultaneously over the same circuit. EE-1 Buzzerphone.jpg


Reference

Adobe PDF icon.png WI PA-01 Wire Communication (Electrical-Engineering) Pamphlet no.1, May 21.1918