Kofferempfänger T521

• Country
• Germany

• Manufacturer / Brand
• Braun; Frankfurt

• Year
• 1962–1964

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1390

• Picture
• Schematics

Previous Next

Previous Next

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

• Number of Transistors
• 9

• Semiconductors
• AF114 AF115 AF116 AF116 AF116 OC75 OC75 OC74 OC74 OA70 OA79 OA79

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz; 3 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)     8 FM circuit(s)

• Wave bands
• Broadcast, Short Wave plus FM or UHF.

• Power type and voltage
• Dry Batteries / 6 × 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch

• Power out
• 1 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Kofferempfänger T521 - Braun; Frankfurt

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 230 x 153 x 59 mm / 9.1 x 6 x 2.3 inch

• Notes
• Bestückung: anstatt 2x OC75 auch OC305[/I] und OC304[/II] bzw. anstatt 2x OA79 mit 2x RL232g möglich.
  Farben: hellgrau, blaugrau und graphit.
  Anschlüsse: Antenne, ext. Lautsprecher/KH, TB, Autohalterung. Die beiden Birnen leuchten nur bei Kfz-Betrieb (Spannung vom Auto-Akku).

• Net weight (2.2 lb = 1 kg)
• 1.7 kg / 3 lb 11.9 oz (3.744 lb)

• Price in first year of sale
• 229.00 DM

• Source of data
• Handbuch VDRG 1962/1963 / Radiokatalog Band 1, Ernst Erb

• Mentioned in
• Handbuch RFP 1963

• 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