• Country
• United States of America (USA)

• Manufacturer / Brand
• Prest-Bottorff-Dean Electrical Mfgs.; Long Beach, CA

• Year
• 1920 ?

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

• Radiomuseum.org ID
• 356766

• Main principle
• Tuner pre 1926 (not a wave trap)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Navy Loose Coupler - Prest-Bottorff-Dean Electrical

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 22 x 6.5 x 7 inch / 559 x 165 x 178 mm

• Notes

• Navy style loose coupler. 

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Prest-Bottorff-Dean Electrical Mfgs.; Long Beach, CA