• Country
• Germany

• Manufacturer / Brand
• Radiofrequenz GmbH; Berlin-Friedenau (später Loewe)

• Year
• 1927

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 16284

• • Brand: Ges. für Radiotelephonie mbH

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

• Number of Tubes
• 2

• Valves / Tubes
• 2HF 3NF

• Main principle
• TRF with regeneration

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast, (BC) Long Wave (LW), 2 x SW and FM or UHF.

• Power type and voltage
• Storage and/or dry batteries / 90 & 82,5 & 22,5 & 6 & 4 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Fernempfänger 2H3N Batterie [Friedenau] - Radiofrequenz GmbH; Berlin-

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

• Dimensions (WHD)
• 490 x 205 x 190 mm / 19.3 x 8.1 x 7.5 inch

• Notes
• Frequenzbereich 200 - 4000 m durch Steckspulenwechsel. < br/>2-fach HF- und 3-fach NF-Röhre - diese sind wohl erst 1927 auf den Markt gekommen.

• Net weight (2.2 lb = 1 kg)
• 4.5 kg / 9 lb 14.6 oz (9.912 lb)

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Literature/Schematics (1)
• -- Schematic

• Other Models

• Here you find 29 models, 19 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radiofrequenz GmbH; Berlin-Friedenau (später Loewe)