• Year
  • 1936–1938
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 164239
    • Brand: Grunow (trade name)

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superhet with RF-stage; ZF/IF 465 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Grunow 654 Ch= 6-N - General Household Utilities Co
  • Shape
  • Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
  • Dimensions (WHD)
  • 14 x 16.5 x 10 inch / 356 x 419 x 254 mm
  • Notes
  • 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. Upright, 6 tubes, standard, police, amateur, foreign. See this article containing Teledial models. Also Teledial models of other brands are covered. In particular the nine 1936/37 Grunow models presented in "Radio Retailing", March 1937, are linked.

  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before
  • Literature/Schematics (3)
  • The Grunow Folder for 1938.

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