• Country
• Germany

• Manufacturer / Brand
• Kosmos, Franckh´sche Verlagshandlung

• Year
• 1923 ?

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 76141

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

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• TRF without regeneration

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Wave Bands given in the notes.

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

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: Radio-Experimentierkasten IV - Kosmos, Franckh´sche

• Notes
• Lang- u. Längstwellenempfang. Ab 1925 auch MW. Ebenso wurde eine Rückkopplung zugelassen.
  Siehe Texte hier.

• External source of data
• Günther-Fuchs: Der praktische Radioamateur

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Author
• Model page created by Wolfgang Holtmann. See "Data change" for further contributors.

• Other Models

• Here you find 210 models, 168 with images and 52 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kosmos, Franckh´sche Verlagshandlung