• Country
• Netherlands

• Manufacturer / Brand
• Groninger Radio 1e; Groningen

• Year
• 1924

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 69145

• Number of Tubes
• 1

• Valves / Tubes

• Main principle
• Audio-Amplification

• Wave bands
• - without

• 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: no name [ver 2] - Groninger Radio 1e; Groningen

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

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

• Literature/Schematics (1)
• Radio Amateur Museum / Frans J.J. Driesens + ISBN 90-76014-04-3.

• Other Models

• Here you find 2 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Groninger Radio 1e; Groningen