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. | + | The EE-1 Buzzerphone maked '''secret''' telegraphic communication possible, while non-secret telephone conversation could be carried on simultaneously over the same circuit. |
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[[File:EE-1 Buzzerphone.jpg]] | [[File:EE-1 Buzzerphone.jpg]] | ||
Revision as of 13:20, 1 November 2015
The EE-1 Buzzerphone maked secret telegraphic communication possible, while non-secret telephone conversation could be carried on simultaneously over the same circuit.
Reference
WI PA-01 Wire Communication (Electrical-Engineering) Pamphlet no.1, May 21.1918