• Country
• Finland

• Manufacturer / Brand
• Harmon, Turku

• Year
• 1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 296407

• • alternative name: Radiokeskus Oy, Turku

• Number of Tubes
• 4

• Valves / Tubes
• DK40 DAF40 DAF40 DL41

• Main principle
• Superheterodyne (common)

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

• Power type and voltage
• Storage and/or dry batteries / 1,4 & 90 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 16 cm = 6.3 inch

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: 640 P - Harmon, Turku

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

• Dimensions (WHD)
• 315 x 252 x 150 mm / 12.4 x 9.9 x 5.9 inch

• Author
• Model page created by Timo Rantasaari. See "Data change" for further contributors.

• Other Models

• Here you find 36 models, 26 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Harmon, Turku