• Country
• Finland

• Manufacturer / Brand
• Oy Helvar; Helsinki

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 286303

• Number of Tubes
• 6

• Valves / Tubes
• AK2 AF3 AB2 AF7 AL1 AZ1

• Main principle
• Superheterodyne (common)

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 220; 250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 18 cm = 7.1 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Super 6/37~ - Oy Helvar; Helsinki

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 580 x 324 x 322 mm / 22.8 x 12.8 x 12.7 inch

• Notes

• Alternative tubes: O406, S423, D400, S424, P434, G459

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

• Other Models

• Here you find 254 models, 214 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