• Country
• Netherlands

• Manufacturer / Brand
• Idzerda-Radio, N.V., Fabriek van Radio-apparaten,

• Year
• 1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 69567

• • alternative name: Nederlandsche Radio Industrie

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

• Number of Tubes
• 6

• Valves / Tubes

• Main principle
• TRF with regeneration

• Tuned circuits
• 3 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 4 & ? Volt

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Coronaphon 2.1.3. - Idzerda-Radio, N.V., Fabriek

• Shape
• Console, Lowboy (legs < 50 %).

• Dimensions (WHD)
• 780 x 1210 x 415 mm / 30.7 x 47.6 x 16.3 inch

• Notes
• Information taken from Radio Expres 29/20. Picture Nr.: 003.38

• External source of data
• Radio Amateur Museum / Frans J.J. Driesens + ISBN 90-76014-04-3.

• Source of data
• Opkomst van de Nederlandse Radio-Industrie

• Mentioned in
• Radio-Expres, Netherlands

• Literature/Schematics (1)
• - - Manufacturers Literature

• Other Models

• Here you find 67 models, 30 with images and 9 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Idzerda-Radio, N.V., Fabriek van Radio-apparaten,