Cigar Box Portable

Adey Radio; London

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  • Anno
  • 1930
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 77561

 Specifiche tecniche

  • Numero di tubi
  • 1
  • Valvole
  • Principio generale
  • A reazione (con rigenerazione)
  • Gamme d'onda
  • Solo onde medie (OM).
  • Tensioni di funzionamento
  • Batterie (di accumulatori e/o a secco)
  • Altoparlante
  • - Per cuffie o amplificatori esterni
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: Cigar Box Portable - Adey Radio; London
  • Forma
  • Tascabile (portatile molto piccola), < 20 cm
  • Dimensioni (LxAxP)
  • 4.5 x 8 x 2.5 inch / 114 x 203 x 64 mm
  • Annotazioni

  • The Adey "Cigar Box Portable" was a single-valve, battery-powered portable radio for headphone use only. It operated on the medium wave (MW) band and featured a variable tuning condenser marked 0-7. Additionally, it included a gramophone pick-up socket and a frame aerial wound around the body. Housed in a genuine wooden cigar box edged with a decorative paper border, it was branded with labels for "dial," "earth," "phones," etc. Measuring 8 inches by 4.5 inches by 2.5 inches, it cost £2 15s 0d, including the valve and batteries. Headphones were an optional extra at 12s 6d.

    A unique feature was a 3-function jack-plug "key" located on the top right of the tuning knob. This key served three purposes:

    1. turning the radio on and off by inserting or removing the key
    2. fine-tuning the station by rotating the key on its axis
    3. controlling the volume through a multi-positioned reaction switch.

    An interesting variation of this receiver was developed for police work, incorporating a loudspeaker fitted into a policeman's helmet.

  • Prezzo nel primo anno
  • 2.75 GB £
  • Bibliografia
  • -- Original prospect or advert (Radio! Radio!, 118, Fig. 289.)

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