• Country
• Germany

• Manufacturer / Brand
• Birgfeld AG, W.A; Berlin

• Year
• 1923–1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 14051

• • Brand: Broadcast AG

• Number of Tubes
• 1

• Valves / Tubes

• Main principle
• TRF with regeneration; something special ? Please give information (notes)

• Tuned circuits
• 1 AM circuit(s)

• 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: KA II - Birgfeld AG, W.A; Berlin

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Notes
• 2 Mod.;auch KA IIb;Ausf. 1- oder 3-Rö

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Radio-Umschau (RU, 68) (2408)

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 20 models, 15 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Birgfeld AG, W.A; Berlin