• Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 152392

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 128,5 kHz; Reflex
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 25 Hz-Netz = auch für 50 Hz geeignet: 110; 130; 150; 220; 240 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 374A/25 - Minerva-Radio Radiola-
  • Notes
  • Direttamente derivante dalla produzione della Minerva austriaca. 25 Perioden.

    Wie 374A aber Netztrafo für 25 Perioden.

    Present also in Italian production by Minerva (Ital Minerva), see schematic, with same circuit, but for 40/60 Hz.
    Tone control. Phone input.
    Self antenna made by connecting the power supply network to the antenna socket of the device through two insulation capacitors. By inserting the external antenna the connection is deactivated.

  • Net weight (2.2 lb = 1 kg)
  • 11.4 kg / 25 lb 1.8 oz (25.11 lb)
  • Price in first year of sale
  • 405.00 ATS
  • Literature/Schematics (1)
  • -- Schematic
  • Literature/Schematics (2)
  • -- Schematic (Schemario degli Apparecchi Radio. D.E. Ravalico – Hoepli – 1944.)
  • Author
  • Model page created by Alessandro De Poi. See "Data change" for further contributors.

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