• Country
• Germany

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

• Year
• 1928–1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 4836

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

• Number of Tubes
• 4

• Valves / Tubes
• REN1004 REN1004 RE134 RGN1503

• Main principle
• TRF with regeneration; 2 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110; 220 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Tefagon 4 1304w1 - Tefag; Telephon

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 340 x 270 x 230 mm / 13.4 x 10.6 x 9.1 inch

• Notes
• 2 Friktionsskalen; Variometer [560]

• Price in first year of sale
• 243.00 RM !

• Source of data
• Radio-Diehr, Berlin, 1928/1929 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Röhren in FS-Bestückungstabellen

• Mentioned in
• Arlt's grosser Radiokatalog 1930

• 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