• Anno
  • 1923
  • Categoria
  • Radio a galena (a cristallo o a diodo, senza valvole o transistores)
  • Radiomuseum.org ID
  • 76721

 Specifiche tecniche

  • Principio generale
  • Rivelazione a galena / semi-conducteur
  • N. di circuiti accordati
  • 1 Circuiti Mod. Amp. (AM)
  • Gamme d'onda
  • Solo onde medie (OM).
  • Tensioni di funzionamento
  • Alimentazione non richiesta
  • Altoparlante
  • - Per cuffie o amplificatori esterni
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: Gnat NMK CI [black dial] - National Wireless & Electric
  • Forma
  • Soprammobile a cassapanca o cassetta, solitamente con coperchio (NON a leggio)
  • Dimensioni (LxAxP)
  • 4.75 x 4 x 4.75 inch / 121 x 102 x 121 mm
  • Annotazioni
  • The " NATIONAL " SUPER CRYSTAL SET Is the ONE and ONLY that Receives BROADCAST TELEPHONY up to 110 Miles.

    In London, for instance, it will receive Birmingham Broadcast, but at this range, signals are very faint. It is ideal for use up to 50 or 60 miles, for clear reception, and is undoubtedly the most wonderful Crystal Set yet produced. Birmingham BBC Station can be heard on it at Works, Acton, distance, 105 miles.

    Price Complete Set, including Brown "F” Phones. 100ft., 7/22 aerial wire, 4 Insulators, £3/18/6.

    BBC/PMG stamp, GPO No.441.
    (matching amp.GPO No.3336).

  • Prezzo nel primo anno
  • 3.93 GB £
  • Letteratura / Schemi (1)
  • -- Original prospect or advert (Amateur Wireless Apr 21, 1923, Page 535.)

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