• Country
• Finland

• Manufacturer / Brand
• Oy Helvar; Helsinki

• Year
• 1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 204689

• Number of Tubes
• 6

• Valves / Tubes
• ECH21 EF22 EF22 EBL21 EM34 AZ1

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 220; 240 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Ultra 6650W - Oy Helvar; Helsinki

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 530 x 312 x 234 mm / 20.9 x 12.3 x 9.2 inch

• Notes
• Radio was made by Helvar for Suomen Koneliike (Helsinki) to be sold under their own brand "Ultra".

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

• Author
• Model page created by Timo Haveri. 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