• Country
• United States of America (USA)

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: USA

• Year
• 1916 ??

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 94189

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• No Power needed

• Material
• Various materials

• from Radiomuseum.org
• Model: Navy Type Loose Coupler - Unknown - CUSTOM BUILT: USA

• Notes
• could be made by "The Wireless Shop" or by "W.M.Duck".

• Source of data
• -- Collector info (Sammler)

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 265 models, 220 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: USA