SCR-211-AF Frequency Meter Set (BC-221-AF)

Zenith Radio Corp.; Chicago, IL

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1943
  • Categoria
  • Strumento da laboratorio
  • Radiomuseum.org ID
  • 142809
    • alternative name: Chicago Radio Lab

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 Specifiche tecniche

  • Numero di tubi
  • 3
  • Gamme d'onda
  • Gamme d'onda nelle note.
  • Tensioni di funzionamento
  • Batterie a secco / 135/6 Volt
  • Altoparlante
  • - solo per cuffie o auricolari
  • Materiali
  • Mobile in legno
  • Radiomuseum.org
  • Modello: SCR-211-AF Frequency Meter Set - Zenith Radio Corp.; Chicago,
  • Forma
  • Apparecchio portatile > 20 cm (senza la necessità di una rete)
  • Dimensioni (LxAxP)
  • 10.5 x 15 x 9.75 inch / 267 x 381 x 248 mm
  • Annotazioni
  • Precision heterodyne frequency meter designed to measure or radiate radio-frequency impulses between 125 kHz and 20 MHz. Portable, self-contained, used mainly to calibrate field radio receivers and transmitters by direct comparison with the crystal-calibrated variable frequency oscillator of the instrument. Frequency readings provided by a calibration book. Contained 1 MHz crystal oscillator and variable frequency oscillator operating in two switched ranges: 125 to 250 kHz and 2 to 4 MHz. The 2nd, 4th and 8th harmonics of the low-frequency range were used to cover 250 kHz to 2 MHz, while the 2nd, 4th and 5th harmonics of the high-frequency range were used to cover 4 MHz to 20 MHz. Required six BA-2 batteries (22.5V each), four BA-23 batteries (1.5V each) and HS-30 headset. Electrically and mechanically similar to models BC-221-P, -T and -AH.
  • Peso netto
  • 39.5 lb (39 lb 8 oz) / 17.933 kg
  • Fonte dei dati
  • -- Original-techn. papers.
  • Letteratura / Schemi (1)
  • TM 11-300 (20 July 1944)
  • Autore
  • Modello inviato da Emilio Ciardiello. Utilizzare "Proponi modifica" per inviare ulteriori dati.

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