• Year
  • 1920
  • Category
  • Radio part (not a module) 
  • Radiomuseum.org ID
  • 192231
    • Brand: Synchrophase

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: RPDB Crystal Detector - Grebe, A.H. & Co.; Richmond
  • Dimensions (WHD)
  • 2.5 x 0 x 2.5 inch / 64 x 0 x 64 mm
  • Notes
  • Grebe RPDB Crystal Detector Stand.
  • Net weight (2.2 lb = 1 kg)
  • 0 lb 4 oz (0.25 lb) / 0.114 kg
  • Price in first year of sale
  • 2.75 $
  • Literature/Schematics (1)
  • 1921 Mesco catalog page 84
  • Literature/Schematics (4)
  • February, 1920 A. H. Grebe & Co. Bulletin R-104, R-105
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model RPDB is part of the collections of the following members.

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