• Anno
  • 1965 ??
  • Categoria
  • Miscellanea (Altro, Varie) - vedere nelle note
  • Radiomuseum.org ID
  • 106388

 Specifiche tecniche

  • Numero di tubi
  • 12
  • Gamme d'onda
  • - senza
  • Tensioni di funzionamento
  • Alimentazione a corrente alternata (CA) / 100-125 Volt
  • Altoparlante
  • - - Nessuna uscita audio.
  • Materiali
  • Mobile di metallo
  • Radiomuseum.org
  • Modello: ISB Adaptor RA-121B [US version] - Racal Engineering /
  • Forma
  • Rack
  • Dimensioni (LxAxP)
  • 19 x 5.25 x 0 inch / 483 x 133 x 0 mm
  • Annotazioni
  • US variant of Independent Side Band Adaptor RA-121 matching the RA-17 family receivers, allows reception of USB, LSB and ISB signals.
    The 100 kHz 3rd IF of the RA-17 is mixed with a 118 kHz oscillator signal for a new IF of 18 kHz. 18 kHz +/- 6 kHz bandpass filters separate the audio signal of the two sidebands, which are fed to separate audio frequency amplifiers.
    A switch allows correct setting of USB / LSB for RA-17 and RA-117 receivers.
    A CRT tube which produces a Lissajou figure is used for indication of correct tuning of receiver and adaptor tuning.
    Variants: RA-121A with European tubes and connectors, RA-121D with more stable crystal controlled 118 kHz oscillator.
  • Bibliografia
  • Racal Handbook, Rinus Jansen
  • Autore
  • Modello inviato da Martin Bösch. Utilizzare "Proponi modifica" per inviare ulteriori dati.

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