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G ; National Airphone (ID = 456301) Crystal G ; National Airphone (ID = 1099599) Crystal
G ; National Airphone (ID = 1099600) Crystal G ; National Airphone (ID = 1099601) Crystal
G ; National Airphone (ID = 1099602) Crystal G ; National Airphone (ID = 1099603) Crystal
G ; National Airphone (ID = 1099604) Crystal G ; National Airphone (ID = 1794632) Crystal
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G ; National Airphone (ID = 456301) Crystal
National Airphone: G [Crystal] ID = 456301 933x405
Select picture or schematic to display from thumbnails on the right and click for download.
For model G, National Airphone Corp.; New York (NY)
Country:  United States of America (USA)
Manufacturer / Brand:  National Airphone Corp.; New York (NY)
Year: 1922 Category: Detector-Radio (Crystal or diode, without tubes/transistors)
Main principle Crystal or Solid State Detector
Wave bands Broadcast only (MW).
Power type and voltage No Power needed
Loudspeaker - For headphones or amp.
Power out
from Model: G - National Airphone Corp.; New
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 6.5 x 2.75 x 4.25 inch / 165 x 70 x 108 mm
Notes One dial (primary tuning control knob) . Two cartridge tuning coils, 150-400 and 500-1000 meters. Hard rubber case.
Price in first year of sale 12.00 $
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Mentioned in Radio News 10/1922

All listed radios etc. from National Airphone Corp.; New York (NY)
Here you find 15 models, 13 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.