• Country
• Germany

• Manufacturer / Brand
• Ratag, Radio-Telephon-AG; Berlin

• Year
• 1924/1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 16384

• Number of Tubes
• 1

• Valves / Tubes
• Wolfram-tube

• Main principle
• TRF without regeneration

• 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, TUBES VISIBLE.

• from Radiomuseum.org
• Model: PR1 - Ratag, Radio-Telephon-AG;

• Dimensions (WHD)
• 180 x 70 x 120 mm / 7.1 x 2.8 x 4.7 inch

• Notes
• [Radio-Umschau 15, 12.4.25] ohne Rückkopplung, eingeb. Spule [322502B]

• Price in first year of sale
• 66.00 RM

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

• Source of data
• Katalog Prohaska 1928/29 / Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Info Dr. H. Börner without schematic

• Mentioned in
• Funkgeschichte der GFGF (8651)

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

• Other Models

• Here you find 23 models, 9 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ratag, Radio-Telephon-AG; Berlin