Audio Sweep Oscillator Type 443B

Dawe Instruments Ltd.; Brentford, Middlesex

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  • Year
  • 1965 ??
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 328420

 Technical Specifications

  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Audio Sweep Oscillator Type 443B - Dawe Instruments Ltd.;
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Notes

  • Type 443B Audio Sweep Oscillator

    Covers the  audio frequency range 20 Hz to 20 kHz. The oscillator works on the heterodyne principle. The frequency can be modulated internally or externally by up to 200 Hz.
    Constant voltage output on 6, 60, 600 or 6,000 Ω of impedance. Output voltage12.5 V to 125 µV, variable in 10 dB steps, displayed on a front panel instrument.
    Distortion less than 0.1 % from 200 to 2,000 Hz. No more than 1 % at 20 - 20,000 Hz.

  • Net weight (2.2 lb = 1 kg)
  • 55 lb (55 lb 0 oz) / 24.970 kg
  • Mentioned in
  • -- Original-techn. papers. (Electronic Engineering, volume 37 year 1965)
  • Literature/Schematics (1)
  • -- Original prospect or advert (GB_Dymar_International Broadcast Engineer March 1965, Page 265)
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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