• Year
  • 1956 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 297874

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Tape Recorder
  • Power type and voltage
  • Alternating Current supply (AC) / 200-250 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Power out
  • 2.5 W (unknown quality)
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Series 4 4A - Ferrograph, British Ferrograph
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 18.5 x 17.5 x 9.75 inch / 470 x 445 x 248 mm
  • Notes
  • Two track.
    Speeds 3.75 & 7.5 ips.
    Up to 8.25 inch reels,
    Frequency responce; 50 to 10,000 Hz at 7.5 ips
     

  • Net weight (2.2 lb = 1 kg)
  • 24 kg / 52 lb 13.8 oz (52.863 lb)
  • Author
  • Model page created by Klaus Gordziel. See "Data change" for further contributors.

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The model Series 4 is part of the collections of the following members.

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