• Country
• Netherlands

• Manufacturer / Brand
• Erres, Van der Heem NV; Den Haag

• Year
• 1978

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 166435

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast, Long Wave, Short Wave plus FM or UHF.

• Power type and voltage
• Storage and/or dry batteries / 4 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch

• Power out
• 1 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Radioportable SX-1650 - Erres, Van der Heem NV; Den

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 270 x 150 x 60 mm / 10.6 x 5.9 x 2.4 inch

• Mentioned in
• -- Original prospect or advert

• Author
• Model page created by Bernd Pötzsch. See "Data change" for further contributors.

• Other Models

• Here you find 409 models, 326 with images and 225 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Erres, Van der Heem NV; Den Haag