• Year
  • 1970 ??
  • Category
  • Radio module post 1925 (not a part, not a key)
  • Radiomuseum.org ID
  • 89300

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: DRO-290A-1 - Watkins Johnson Company,
  • Shape
  • Rack
  • Dimensions (WHD)
  • 19 x 1.5 x 18 inch / 483 x 38 x 457 mm
  • Notes
  • digital frequency readout matching the 521A-3 SW/VHF receiver; displays up to 0,1 kHz with nixie tubes.
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

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