• Country
• Netherlands

• Manufacturer / Brand
• Minimax, Radio-Onderneming, Beek en Donk

• Year
• 1926 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 245541

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

• Number of Tubes
• 4

• Valves / Tubes
• A409 A409 B406 B406

• Main principle
• TRF with regeneration

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: O.V.B.4 - Minimax, Radio-Onderneming,

• Shape
• Tablemodel, slant panel.

• Notes

• The 4 tube model O.V.B.4 is an extension of the 3 tube model O.V.3.

• Mentioned in
• Radio Historisch Tijdschrift, Nr. 151, December 2014

• Author
• Model page created by Gidi Verheijen. See "Data change" for further contributors.

• Other Models

• Here you find 23 models, 21 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Minimax, Radio-Onderneming, Beek en Donk