• Year
  • 1933–1935
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 7964

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF with regeneration; 1 Special; 2 AF stage(s)
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Storage and/or dry batteries / 100+4 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: B421 - Nora, Aron, Heliowatt; Berlin
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 340 x 265 x 253 mm / 13.4 x 10.4 x 10 inch
  • Notes
  • Wie B421L, nur ohne eingebautem Lautsprecher.

  • Price in first year of sale
  • 130.00 RM +
  • Picture reference
  • Das Modell ist im «Radiokatalog» (Erb) abgebildet.

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

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