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Crystal Radio

Crystal Radio ; National Radio (ID = 1709726) Crystal Crystal Radio ; National Radio (ID = 1709727) Crystal
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Crystal Radio ; National Radio (ID = 1709726) Crystal
National Radio: Crystal Radio [Crystal] ID = 1709726 933x1128
Select picture or schematic to display from thumbnails on the right and click for download.
For model Crystal Radio, National Radio Institute (NRI); Washington, DC:
eBay item number: 201139573335
 
Country:  United States of America (USA)
Manufacturer / Brand:  National Radio Institute (NRI); Washington, DC
Year: 1922 ?? Category: Detector-Radio (Crystal or diode, without tubes/transistors)
Main principle Crystal or Solid State Detector
Wave bands Wave Bands given in the notes.
Details
Power type and voltage No Power needed
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Crystal Radio - National Radio Institute NRI;
Material Wooden case
Shape Tablemodel, slant panel.
Dimensions (WHD) 10 x 6.5 x 7.5 inch / 254 x 165 x 191 mm
Notes 4,25" tapped coil with two times each four selectable positions, condenser tuning knob in the middle, crystal on right side.
Source of data -- Collector info (Sammler)

Model page created by a member from A. See "Data change" for further contributors.



All listed radios etc. from National Radio Institute (NRI); Washington, DC
Here you find 19 models, 19 with images and 6 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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