• Country
• Italy

• Manufacturer / Brand
• Geloso SA; Milano

• Year
• 1940

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 121768

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

• Number of Tubes
• 1

• Valves / Tubes
• 6J7G

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit. / 125 / 6,3 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Preamplificatore per fotocellula G1 - Geloso SA; Milano

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 115 x 165 x 190 mm / 4.5 x 6.5 x 7.5 inch

• Notes
• Preamplificatore per microfono o fotocellula da abbinarsi agli amplificatori G17A or G27A or G29A da cui prende le tensioni di alimentazione.

• Literature/Schematics (1)
• Bollettino Tecnico Geloso (N. 34 primavera 1940)

• 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