• Country
• Italy

• Manufacturer / Brand
• GBC; Milano

• Year
• 1963

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 160936

• • alternative name: Gian Bruto Castelfranchi

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

• Number of Transistors
• 7

• Semiconductors
• AF116 AF117 AF117 OC71 OC71 OC74 OC74 OA70

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: AR-31 - GBC; Milano

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

• Dimensions (WHD)
• 296 x 153 x 93 mm / 11.7 x 6 x 3.7 inch

• Notes

• Radioricevitore supereterodina
  Scala di sintonia demoltiplicata
  Mobiletto in materia plastica antiurto bicolore

  SW: 5,9-12 MHz

  Il disegno ricorda simili radio Sony come p.es. il modello TR-7170L

• Net weight (2.2 lb = 1 kg)
• 1.6 kg / 3 lb 8.4 oz (3.524 lb)

• Literature/Schematics (1)
• Selezione Radio-TV Marzo 1963

• Author
• Model page created by Eduard Abfalterer. See "Data change" for further contributors.

• Other Models

• Here you find 557 models, 430 with images and 247 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from GBC; Milano