• Country
• Netherlands

• Manufacturer / Brand
• Hulshof & Scheffer, Fa., Amsterdam

• Year
• 1927

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 69560

• Number of Tubes
• 4

• Valves / Tubes

• 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

• from Radiomuseum.org
• Model: Helicon Ideal - Hulshof & Scheffer, Fa.,

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

• Notes
• Preis mit Akku/Batterie, Spulen und Röhren: Hfl 285.

• Price in first year of sale
• 225.00 Hfl

• 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 Wereld, The Netherlands (1927 (Nr. 8))

• 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 Hulshof & Scheffer, Fa., Amsterdam