Heterodyne Local Oscillator 357

MIM, Marconi International Marine; Chelmsford Essex

  • Année
  • 1930 ??
  • Catégorie
  • Récepteur commercial (peut inclure bandes amateurs)
  • Radiomuseum.org ID
  • 257258

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 Spécifications techniques

  • No. de tubes
  • 1
  • Lampes / Tubes
  • Gammes d'ondes
  • Bandes en notes
  • Tension / type courant
  • Piles (rechargeables ou/et sèches) / 2 or 4 or 6 & 72 Volt
  • Haut-parleur
  • - - Pas de sortie basse fréquence
  • Matière
  • Boitier métallique
  • De Radiomuseum.org
  • Modèle: Heterodyne Local Oscillator 357 - MIM, Marconi International
  • Forme
  • Gros appareil industriel ou militaire (> 20 kg)
  • Remarques
  • 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.

  • Littérature
  • - - Manufacturers Literature

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