Taschenempfänger T31 / KT31

• Country
• Germany

• Manufacturer / Brand
• Braun; Frankfurt

• Year
• 1960–1962

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1372

• Picture
• Schematics

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

• Number of Transistors
• 7

• Semiconductors
• OC44 OC45 OC45 OA70 OC71 OC71 OC72 OC72

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

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

• Power type and voltage
• Dry Batteries / 4 × 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 7 cm = 2.8 inch

• Power out
• 0.15 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Taschenempfänger T31 / KT31 - Braun; Frankfurt

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 150 x 83 x 41 mm / 5.9 x 3.3 x 1.6 inch

• Notes
• Anschlussbuchsen für Plattenspieler Typ P1 (in Phonokombination TP2), Kleinhörer und Schaltuhr: Klinkenstecker 3.5 mm.

• Net weight (2.2 lb = 1 kg)
• 0.5 kg / 1 lb 1.6 oz (1.101 lb)

• Price in first year of sale
• 125.00 DM

• Source of data
• HdB d.Rdf-& Ferns-GrH 1960/61 / Radiokatalog Band 1, Ernst Erb

• Mentioned in
• HdB d.Rdf-& Ferns-GrH 1961/62

• Picture reference
• Das Gerät ist im Doppelband "Historische Radios" von Günther Abele abgebildet.

• Other Models

• Here you find 1067 models, 936 with images and 653 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Braun; Frankfurt