• Country
• Germany

• Manufacturer / Brand
• Koch & Sterzel AG; Dresden

• Year
• 1929 ?

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 15437

• Number of Tubes
• 1

• Valves / Tubes
• RGN1054

• Wave bands
• - without

• Details
• Power: B-Battery Eliminator

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: NA5 - Koch & Sterzel AG; Dresden

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Röhren in FS-Bestückungstabellen

• Other Models

• Here you find 75 models, 49 with images and 25 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Koch & Sterzel AG; Dresden