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CN208 Radio Receiver

CN208 Radio Receiver ; National Electric (ID = 1945292) mod-pre26 CN208 Radio Receiver ; National Electric (ID = 1945293) mod-pre26
CN208 Radio Receiver ; National Electric (ID = 1945294) mod-pre26 CN208 Radio Receiver ; National Electric (ID = 1945296) mod-pre26
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CN208 Radio Receiver ; National Electric (ID = 1945292) mod-pre26
National Electric: CN208 Radio Receiver [mod-pre26] ID = 1945292 933x848
Select picture or schematic to display from thumbnails on the right and click for download.
For model CN208 Radio Receiver, National Electric Signaling Co. (NESCO) or Supply; Washington, D.C.
 
Country:  United States of America (USA)
Manufacturer / Brand:  National Electric Signaling Co. (NESCO) or Supply; Washington, D.C.
alternative name
 
National Electric Signaling Co. || National Electrical Supply Co.
Year: 1917 Category: Radio module pre 1926 (not a part, not a key)
Main principle Tuner pre 1926 (not a wave trap)
Wave bands Broadcast (MW) and Long Wave.
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - - No sound reproduction output.
Power out
from Radiomuseum.org Model: CN208 Radio Receiver - National Electric Signaling Co
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Notes

The CN-208 was the reference design for the SE-143 Navy Standard Shortwave Receiver of 1917. According to the “History of Communications-Electronics in the United States Navy” by Capt. L.S. Howeth published by the U.S. Government Printing Office in 1963: “Early in 1916 it was decided to redesign the type A and B receivers. The specifications for the new receivers were provided to the Washington Navy Yard and to the National Electric Supply Co., of Washington, D.C. The Navy Yard had completed the new designs of these receivers before the National Electric Supply Co. submitted models of their two receivers, the CN 208 and CN 239. It was discovered that the induction coils of these were superior to those used in the Navy designs. Production of type A, 1917, had commenced but was stopped after 40 receivers had been manufactured. Type B, 1917, was not placed into production. Modified specifications were immediately issued and the Navy Yard redesigned and developed their sets, designated the SE 95 and SE 143 receivers.” The wavelength range of the CN-208 is 250 to 3100 meters (same as the SE-143).

Model page created by Richard Groshong. See "Data change" for further contributors.



All listed radios etc. from National Electric Signaling Co. (NESCO) or Supply; Washington, D.C.
Here you find 30 models, 28 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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