• Country
• Italy

• Manufacturer / Brand
• Geloso SA; Milano

• Year
• 1964

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 122358

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

• Number of Transistors
• 7

• Semiconductors
• AC126 AC126 AF118 AC127 AC132 AD139 AD139

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 110; 125; 160; 220 / 24 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 10 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Amplificatore Monofonico Alta Fedeltà G248-HF [7 transistori] - Geloso SA; Milano

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 80 x 140 x 120 mm / 3.1 x 5.5 x 4.7 inch

• Notes

• L'amplificatore può essere alimentato con batteria a 24 volt DC o con apposito alimentatore.

  • Sensibilità fono (ingresso 800 kΩ): 500 mV / - 42,84 dB
  • Guadagno fono: +75,04 dB
  • Sensibilità registratore/radio (ingresso 400 kΩ): 300 mV / - 44,25 dB
  • Guadagno registratore/radio: +76,45 dB
  • Risposta ± 1 dB: 20 ... 20000 Hz
  • Rapporto segnale/rumore: > 60 dB

  Peso netto dell'amplificatore: 0,76 kg
  Peso netto dell'alimentatore: 1,00 kg

• Net weight (2.2 lb = 1 kg)
• 0.760 kg / 1 lb 10.8 oz (1.674 lb)

• Literature/Schematics (1)
• Bollettino Tecnico Geloso (No. 93, estate 1964, p.18)

• Author
• Model page created by Giuseppe Antonio Tusini. See "Data change" for further contributors.

• Other Models

• Here you find 956 models, 803 with images and 724 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Geloso SA; Milano