• Country
• Italy

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

• Year
• 1955

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 282267

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

• Number of Tubes
• 6

• Valves / Tubes
• 12AT7 12AT7 6SL7GT 6V6GT 6V6GT 5Y3

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 125; 140; 160; 200; 220; 260 Volt

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

• Power out
• 15 W (unknown quality)

• Material
• Metal case, TUBES VISIBLE

• from Radiomuseum.org
• Model: Amplificatore AP50 - Marelli Radiomarelli; Sesto

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 200 x 350 x 220 mm / 7.9 x 13.8 x 8.7 inch

• Notes

• Marelli AP50 is a mono mixing amplifier with 3 inputs:

  • 2x Microphone, 12 mV sensitivity
  • 1x Pick-up, 120 mV sensitivity

  Separate bass and treble controls, output impedance 4, 8, 16 and 200 Ω
  Frequency response 50 Hz - 20 kHz ± 1dB

  ---

  L'amplificatore AP50 è completato dal preamplificatore AP56 oppure dal preamplificatore AP55. La configurazione indicata in questa pagina indica l'amplificatore AP50 +  il preamplificatore AP56.

  Il preamplifiatore AP55 ha solo 2 ingressi, Micro e Fono ed una sola valvola 12AT7 come preamplificatrice ed è pertanto meno efficiente dell'AP56.

  Le alimentazioni provengono in ogni caso dall'alimentatore dell' AP50.

• Price in first year of sale
• 53,000.00 ITL

• Mentioned in
• Catalogo ANIE (1955-56)

• Literature/Schematics (1)
• -- Schematic (Scuola Radio Elettra, Corso Radio Stereo, 1964/65 Schemario/Abaco.)

• Author
• Model page created by Angelo Vannini. See "Data change" for further contributors.

• Other Models

• Here you find 485 models, 376 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)