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. It can be compared with the British Fullerphone, but the Buzzerphone was much improved in compactness, weight and scheme of operation.
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The EE-1 Buzzerphone made '''secret''' telegraphic communication possible, while non-secret telephone conversation could be carried on simultaneously over the same circuit. It can be compared with the British Fullerphone, but the Buzzerphone was much improved in compactness, weight and scheme of operation.
  
 
[[File:EE-1 Buzzerphone.jpg]]
 
[[File:EE-1 Buzzerphone.jpg]]

Revision as of 21:21, 1 November 2015

The EE-1 Buzzerphone made secret telegraphic communication possible, while non-secret telephone conversation could be carried on simultaneously over the same circuit. It can be compared with the British Fullerphone, but the Buzzerphone was much improved in compactness, weight and scheme of operation.

EE-1 Buzzerphone.jpg


Reference

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