• Country
• Sweden

• Manufacturer / Brand
• Swenson AB, Yngve; Västerås

• Year
• 1927 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 110566

• Number of Tubes
• 3

• Valves / Tubes
• A425 A425 B406

• Main principle
• TRF with regeneration

• Tuned circuits
• 1 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 4 & 3-4 & 35 & 70 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: TRF 3 valve receiver - Swenson AB, Yngve; Västerås

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 370 x 210 x 220 mm / 14.6 x 8.3 x 8.7 inch

• Notes
• Tuning by tapped coil and condenser, regeneration with inductive feedback

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

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Swenson AB, Yngve; Västerås