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alternative name
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National Electric Signaling Co. || National Electrical Supply Co. | ||||
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Year: 1917 | Category: Detector-Radio (Crystal or diode, without tubes/transistors) |
Main principle | Crystal or Solid State Detector |
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Wave bands | Broadcast (MW) and Long Wave. |
Details | |
Loudspeaker | - For headphones or amp. |
Power out | |
from Radiomuseum.org | Model: Radio Receiver Type CN 597 - National Electric Signaling Co |
Material | Wooden case |
Shape | Tablemodel, Box - most often with Lid (NOT slant panel). |
Dimensions (WHD) | 17 x 7 x 7 inch / 432 x 178 x 178 mm |
Notes |
This CN-597 Crystal Receiver was very similar to the NESCO CN-113 and covered the frequency range of 300 to 2,500 meters. The telephone terminals on the CN 113 were replaced by a telephone jack on the CN 597. The set included a built-in crystal detector. Binding post connections were also provided to allow it to be used with an external vacuum tube detector in a regenerative circuit or with an alternate crystal detector. The switch in the center determined whether the crystal detector (the "DET" position) or the vacuum tube ("AUD" position) would be used. |
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.