Heterodyne Local Oscillator 357

MIM, Marconi International Marine; Chelmsford Essex

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1930 ??
  • Categoria
  • Ricevitore professionale (può includere bande amatoriali)
  • Radiomuseum.org ID
  • 257258

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 Specifiche tecniche

  • Numero di tubi
  • 1
  • Valvole
  • Gamme d'onda
  • Gamme d'onda nelle note.
  • Tensioni di funzionamento
  • Batterie (di accumulatori e/o a secco) / 2 or 4 or 6 & 72 Volt
  • Altoparlante
  • - - Nessuna uscita audio.
  • Materiali
  • Mobile di metallo
  • Radiomuseum.org
  • Modello: Heterodyne Local Oscillator 357 - MIM, Marconi International
  • Forma
  • Boatanchor (pesante apparecchio militare o commerciale, > 20 kg)
  • Annotazioni

  • The heterodyne type 357 has been specially designed for use with the receiver Type 352. It covers a wave range from 200 to 22,000 meters in 5 wavebands and is for use on CW signals only.

    The heterodyne uses a simple oscillator circuit which is coupled to the receiver by means of a coupling capacity, contained within the device. A large HT choke and a decoupling condenser prevent feedback to the receiver via the battery or battery leads.

    The heterodyne comes with a calibration chart that gives instructions about wave range switch and tuning condenser position for each desired wave length.

  • Bibliografia
  • - - Manufacturers Literature

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