• Country
• Austria

• Manufacturer / Brand
• Kapsch & Söhne (KS), Telephon- und Telegraphenfabriks-AG; Wien

• Year
• 1926/1927

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 9271

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• A409 A425 B406 B406

• Main principle
• TRF without regeneration

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Selektophon SP4 - Kapsch & Söhne KS, Telephon-

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

• Dimensions (WHD)
• 460 x 230 x 215 mm / 18.1 x 9.1 x 8.5 inch

• Notes
• 200-600m [MB0002B] Um Batterie zu sparen kann das Gerät mit einer B406 betrieben werden. (Kopfhörer)

• Net weight (2.2 lb = 1 kg)
• 5.4 kg / 11 lb 14.3 oz (11.894 lb)

• Price in first year of sale
• 320.00 ATS

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Other Models

• Here you find 613 models, 506 with images and 376 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kapsch & Söhne (KS), Telephon- und Telegraphenfabriks-AG; Wien