• Country
• Germany

• Manufacturer / Brand
• Tefag; Telephon Aktiengesellschaft vorm. J. Berliner

• Year
• 1925/1926

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 4911

• • alternative name: Telephon-Fabrik, AG vorm. J. Berliner

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

• Number of Tubes
• 9

• Valves / Tubes

• Main principle
• Superhet and TRF, very rare principle; ZF/IF 50 kHz

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Superhet 1239 - Tefag; Telephon

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

• Dimensions (WHD)
• 870 x 300 x 280 mm / 34.3 x 11.8 x 11 inch

• Notes
• Trioden-Superhet. ZF veränderbar (normal 50 kHz). 4 ZF-Kreise, keine Bandfilter. Für Rahmen- oder Hochantenne.
  Frequenzbereiche:
  50 - 200 m
  200 - 530 m
  530 - 1100 m
  1100 - 2250 m
  2250 - 4000 m.
  Umschaltbar auf 4-Röhren Geradeaus mit zusätzlicher Langwellenverstärkung.

• Source of data
• -- Original-techn. papers. / Radiokatalog Band 1, Ernst Erb

• Other Models

• Here you find 262 models, 180 with images and 108 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tefag; Telephon Aktiengesellschaft vorm. J. Berliner