• Country
• Italy

• Manufacturer / Brand
• Marelli (Radiomarelli); Sesto San Giovanni (MI)

• Year
• 1947 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 299356

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

• Number of Tubes
• 5

• Valves / Tubes
• 6J7GT 6SL7GT 6V6GT 6V6GT 6X5

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 12 Volt

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

• Power out
• 10 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Amplificatore AP28 - Marelli Radiomarelli; Sesto

• Notes

• Amplificatore alimentato direttamente dalla batteria di bordo (12 V consumo circa 5 A) di un automezzo. Ingressi per microfono, giradischi e radio. Impedenze di uscita: 2,5 - 5 - 7,5 - 10 - 15 Ω.

• Mentioned in
• -- Original-techn. papers. (Il Manuale del Radiomeccanico G. B. Angeletti 1948/49)

• Literature/Schematics (1)
• -- Original prospect or advert (Radio Industria numero 133-134 1947)

• Author
• Model page created by Pierpaolo Di Martino. See "Data change" for further contributors.

• Other Models

• Here you find 485 models, 375 with images and 298 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Marelli (Radiomarelli); Sesto San Giovanni (MI)