• Country
• Italy

• Manufacturer / Brand
• Geloso SA; Milano

• Year
• 1950

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 121829

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

• Number of Tubes
• 6

• Valves / Tubes
• 6J5GT 6L6GT 807 807 83 83

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 140; 160; 220; 280 Volt

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

• Power out
• 75 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Unità di potenza G277A - Geloso SA; Milano

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 440 x 232 x 237 mm / 17.3 x 9.1 x 9.3 inch

• Notes
• unità di potenza da collegare al preamplificatore G276-A. Possibilità di collegamento in serie sino ad un massimo di 20 unità per una potenza max di 1500 watt.

• Net weight (2.2 lb = 1 kg)
• 15.3 kg / 33 lb 11.2 oz (33.7 lb)

• Literature/Schematics (1)
• Bollettino Tecnico Geloso (n. 43 primavera 1950)

• 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