Difference between revisions of "EE-1"
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| − | The EE-1 Buzzerphone | + | 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. |
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[[File:EE-1 Buzzerphone.jpg]] | [[File:EE-1 Buzzerphone.jpg]] | ||
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| + | == EE-1-A == | ||
| + | [[File:EE-1-A Buzzerphone.jpg]] | ||
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== Reference == | == Reference == | ||
| − | {{pdf|WI PA-01 May. 21, 1918 The Buzzerphone Type EE-1.pdf|WI PA-01}} Wire Communication (Electrical-Engineering) Pamphlet no.1, May 21.1918 | + | *{{pdf|WI PA-01 May. 21, 1918 The Buzzerphone Type EE-1.pdf|WI PA-01}} Wire Communication (Electrical-Engineering) Pamphlet no.1, May 21.1918 |
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| + | * TR 1230-5 The Buzzerphone, Type EE-1-A (6 December 1929) | ||
Latest revision as of 17:48, 16 September 2020
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-A
Reference
WI PA-01 Wire Communication (Electrical-Engineering) Pamphlet no.1, May 21.1918
- TR 1230-5 The Buzzerphone, Type EE-1-A (6 December 1929)