• Country
• Finland

• Manufacturer / Brand
• Oy Helvar; Helsinki

• Year
• 1955 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 121028

• Number of Transistors
• 7

• Semiconductors

• Main principle
• Superheterodyne (common); 3 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 6 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• Material
• Bakelite or Plastics (type unknown)

• from Radiomuseum.org
• Model: unknown - Oy Helvar; Helsinki

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

• Dimensions (WHD)
• 265 x 190 x 90 mm / 10.4 x 7.5 x 3.5 inch

• Notes
• Loudspeaker 9 x 13 cm. Transistor example OC44 OC45 OC45 OC71 OC71 and PA ?

• Net weight (2.2 lb = 1 kg)
• 2.2 kg / 4 lb 13.5 oz (4.846 lb)

• Source of data
• - - Data from my own collection

• Author
• Model page created by Eero Ukkola. See "Data change" for further contributors.

• Other Models

• Here you find 254 models, 215 with images and 93 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Oy Helvar; Helsinki