• Country
• Germany

• Manufacturer / Brand
• Tonfunk GmbH; Karlsruhe

• Year
• 1963/1964

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 17450

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

• Number of Transistors
• 9

• Semiconductors
• AF121 AF125 AF116 AF116 AF116 OC305 OC304 SB202 SB202

• Main principle
• Superheterodyne (common); ZF/IF 460/10700 kHz

• Tuned circuits
• 6 AM circuit(s)     9 FM circuit(s)

• Wave bands
• Broadcast, Long Wave and 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
• 0.8 W (unknown quality)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Berlin BT75 - Tonfunk GmbH; Karlsruhe

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

• Dimensions (WHD)
• 280 x 190 x 85 mm / 11 x 7.5 x 3.3 inch

• Notes
• Netzbetrieb mit Netzadapter (220 V) möglich.

• Net weight (2.2 lb = 1 kg)
• 2.5 kg / 5 lb 8.1 oz (5.507 lb)

• Price in first year of sale
• 228.00 DM

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

• Source of data
• Handbuch VDRG 1963/1964 / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Handbuch RFP 1963

• Other Models

• Here you find 570 models, 333 with images and 239 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tonfunk GmbH; Karlsruhe