Pattern 541 Navyphone: Difference between revisions
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[[File: | [[File:Pattern541Navyphone_TBD1914.jpg|thumb|200px|'''Pattern 541 Navyphone'''<ref>''Torpedo Drill Book, 1914'', p. 268</ref><br>Presumably, the little circle at upper right is the call-up button, but this was actually located on the left side.{{INF}} ]] | ||
The Royal Navy's '''Pattern 541 Navyphone''' was a refined little handset model suitable for use in cabins. It replaced the clumsy cabin model derived from the [[Pattern 210X Navyphones#Cabin Navyphone Version|Pattern 2108A Navyphone]]<ref>''Torpedo Drill Book, 1914'', p. 268.</ref> It was first used in [[H.M.S. Bellerophon (1907)|''Bellerophon'']],<ref>''Torpedo Drill Book, 1914'', p. 271.</ref> being introduced in 1909.<ref>''Annual Report of the Torpedo School, 1909'', p. 70.</ref> | The Royal Navy's '''Pattern 541 Navyphone''' was a refined little handset model suitable for use in cabins. It replaced the clumsy cabin model derived from the [[Pattern 210X Navyphones#Cabin Navyphone Version|Pattern 2108A Navyphone]]<ref>''Torpedo Drill Book, 1914'', p. 268.</ref> It was first used in [[H.M.S. Bellerophon (1907)|''Bellerophon'']],<ref>''Torpedo Drill Book, 1914'', p. 271.</ref> being introduced in 1909.<ref>''Annual Report of the Torpedo School, 1909'', p. 70.</ref> | ||
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==Bibliography== | ==Bibliography== | ||
{{refbegin}} | |||
*{{BibUKTorpedoDrillBook1914}} | *{{BibUKTorpedoDrillBook1914}} | ||
*{{BibUKARTS1909}} | *{{BibUKARTS1909}} | ||
{{refend}} | |||
[[Category:Communications Equipment]] | [[Category:Communications Equipment]] | ||
[[Category:Shipboard Equipment]] | [[Category:Shipboard Equipment]] | ||
Revision as of 16:56, 28 February 2011
Presumably, the little circle at upper right is the call-up button, but this was actually located on the left side.[Inference]
The Royal Navy's Pattern 541 Navyphone was a refined little handset model suitable for use in cabins. It replaced the clumsy cabin model derived from the Pattern 2108A Navyphone[2] It was first used in Bellerophon,[3] being introduced in 1909.[4]
Form Factor
The case was oval-shaped and would be mounted on a bulkhead[5] with its long axis vertical. It dimensions may have been about 130mm across and 200mm tall.[6]
It featured a hemispherical bell on the front of the case and an angled handset with transmitter and receiver hung on a hook on the right hand side. The hook made the ringing circuit when the phone was hung up. The handset also featured a "speaking circuit break", which might mean a push-to-talk push or switch.
A small circle on the diagram might be the call-up push button.[7]
Service Life
The phone was fairly short-lived, as the Pattern 2462 Navyphone was used in Orion in 1911 or so[8].
See Also
Footnotes
- ↑ Torpedo Drill Book, 1914, p. 268
- ↑ Torpedo Drill Book, 1914, p. 268.
- ↑ Torpedo Drill Book, 1914, p. 271.
- ↑ Annual Report of the Torpedo School, 1909, p. 70.
- ↑ or on a table, per Torpedo Drill Book, 1914, p. 271.
- ↑ comparing shorter dimension to those of the round models, e.g., Pattern 1855 Navyphone
- ↑ Torpedo Drill Book, 1914, p. 268.
- ↑ Torpedo Drill Book, 1914, p. 271.
Bibliography
