• Country
• Germany

• Manufacturer / Brand
• Aeriola Ges.m.b.H.; Berlin

• Year
• 1927 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 13851

• • Brand: Radio-Baby

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

• Number of Tubes
• 1

• Valves / Tubes
• NZ420

• Main principle
• TRF with regeneration; 1 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Duplon - Aeriola Ges.m.b.H.; Berlin

• Dimensions (WHD)
• 160 x 120 x 130 mm / 6.3 x 4.7 x 5.1 inch

• Notes

• Spulenkoppler. Mit der Röhre NZ420 ist das Modell ab 1927 möglich.

• Net weight (2.2 lb = 1 kg)
• 1 kg / 2 lb 3.2 oz (2.203 lb)

• Price in first year of sale
• 40.00 RM +

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Elektrotechnische Zeitschrift (ETZ) (2639)

• Other Models

• Here you find 32 models, 24 with images and 7 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Aeriola Ges.m.b.H.; Berlin