• Country
• France

• Manufacturer / Brand
• Radiola (marque)

• Year
• 1975 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 204281

• • Brand: SFER

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Long Wave and/or Very Low Frequency (VLF).

• Power type and voltage
• Storage and/or dry batteries / 2 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.5 cm = 2.2 inch

• Power out
• 0.25 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Long Wave D4028 - Radiola marque

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 70 x 120 x 27 mm / 2.8 x 4.7 x 1.1 inch

• Notes
• Nur Langwelle, 150 - 250 kHz

• Net weight (2.2 lb = 1 kg)
• 0.190 kg / 0 lb 6.7 oz (0.419 lb)

• Author
• Model page created by Peter Böhm. See "Data change" for further contributors.

• Other Models

• Here you find 850 models, 559 with images and 275 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radiola (marque)