Navy Type Loose Coupler Type R-21

Signal Electric Mfg. Co.; Menominee (MI)

Data
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  • Year
  • 1917–1921 ?
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 121615

 Technical Specifications

  • Main principle
  • Tuner pre 1926 (not a wave trap)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Navy Type Loose Coupler Type R-21 - Signal Electric Mfg. Co.;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 18.25 x 7 x 6.5 inch / 464 x 178 x 165 mm
  • Notes
  • Fixed coil with 3 rotary tap controls, slide coil with 12 selectable positions, 4 connection terminals on left side.
  • Net weight (2.2 lb = 1 kg)
  • 2.9 kg / 6 lb 6.2 oz (6.388 lb)
  • Source of data
  • -- Collector info (Sammler)
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

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Collections

The model Navy Type Loose Coupler is part of the collections of the following members.

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