• Year
  • 1936
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 164284
    • Brand: Grunow (trade name)

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • Superhet with RF-stage; ZF/IF 455 kHz
  • Tuned circuits
  • 8 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and 2 x Short Wave.
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 11.5 inch = 29.2 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Grunow 831 Ch= 8-H - General Household Utilities Co
  • Shape
  • Console with any shape - in general
  • Dimensions (WHD)
  • 26 x 41.5 x 14 inch / 660 x 1054 x 356 mm
  • Notes
  • Tuning eye; different power transformers are used for 115 V (50-60 cycle), 115 V (25-50 cycle) or 115, 135, 220, 250 V (50-60 cycle) mains supply.
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before

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The model Grunow 831 is part of the collections of the following members.

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