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CN-113 ; National Electric (ID = 1385654) Crystal CN-113 ; National Electric (ID = 1385655) Crystal
CN-113 ; National Electric (ID = 1385656) Crystal CN-113 ; National Electric (ID = 1385657) Crystal
CN-113 ; National Electric (ID = 1385658) Crystal CN-113 ; National Electric (ID = 1385659) Crystal
CN-113 ; National Electric (ID = 1385660) Crystal CN-113 ; National Electric (ID = 1385661) Crystal
CN-113 ; National Electric (ID = 1385662) Crystal CN-113 ; National Electric (ID = 1385663) Crystal
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CN-113 ; National Electric (ID = 1385654) Crystal
National Electric: CN-113 [Crystal] ID = 1385654 933x402
Select picture or schematic to display from thumbnails on the right and click for download.
For model CN-113, National Electric Signaling Co. (NESCO) or Supply; Washington, D.C.:
Ebay Item Number: 190788680793
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: Detector-Radio (Crystal or diode, without tubes/transistors)
Main principle Crystal or Solid State Detector
Wave bands Broadcast (MW) and Long Wave.
Power type and voltage No Power needed
Loudspeaker - For headphones or amp.
Power out
from Model: CN-113 - National Electric Signaling Co
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Dimensions (WHD) 17 x 7 x 6 inch / 432 x 178 x 152 mm

This CN-113 Crystal Receiver covered a frequency range of about 33 kHz to 1 mHz, and it included a built-in crystal detector.  Binding post connections were provided to allow it to be used with an external vacuum tube detector in a regenerative circuit or 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.  At the time, tubes were still generally called "Audions", the name given them by Lee DeForest, who invented the triode.

Model page created by Alan Scott Douglas † 16.11.15. 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.