• Country
• Italy

• Manufacturer / Brand
• GBC; Milano

• Year
• 1961/1962

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 140384

• • alternative name: Gian Bruto Castelfranchi

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

• Number of Transistors
• 6

• Semiconductors
• OC170 OC169 OC169 OC71 OC72 OC72 OA70

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz; 2 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

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

• Power type and voltage
• Dry Batteries / 2 x 6 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Kentucky AR/21 - GBC; Milano

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

• Dimensions (WHD)
• 205 x 130 x 55 mm / 8.1 x 5.1 x 2.2 inch

• Notes

• Gamme d'onda:
  OM: 530 ÷ 1600 kHz.
  OL: 155 ÷ 275 kHz.

  Le 2 batterie sono in parallelo per ottenere una autonomia di circa 100 ore.
  Con l'alimentatore 1/601 funziona con la rete luce.

• Net weight (2.2 lb = 1 kg)
• 0.850 kg / 1 lb 14 oz (1.872 lb)

• Price in first year of sale
• 19,500.00 ITL

• Mentioned in
• -- Original prospect or advert (Selezione di tecnica radio-tv, n.6, 1961)

• Literature/Schematics (1)
• -- Original prospect or advert (Catalogo originale GBC 1962.)

• Author
• Model page created by Franz Scharner. See "Data change" for further contributors.

• Other Models

• Here you find 419 models, 297 with images and 237 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from GBC; Milano