• Country
• Great Britain (UK)

• Manufacturer / Brand
• QED Hi-Fi Systems; Ashford, Bishops Stortford

• Year
• 1981 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 273845

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 4

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Hi-Fi equipment

• Power type and voltage
• Dry Batteries / 2 x 1,5 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: MC Pre-Amplifier MCA-1 - QED Hi-Fi Systems; Ashford,

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 155 x 28 x 104 mm / 6.1 x 1.1 x 4.1 inch

• Notes

• Verstärkung schaltbar x 24 oder x 50. Anschlüsse über Chinchbuchsen. 

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  PU Moving Coil element pre-amplifier. This unit must precede an RIAA pre-amplifier. The unit is powered by batteries to avoid hum.

  • Linear characteristic.
  • Amplification factor: x24 (+27dB) or x50 (+34dB) selectable.
  • Bandwidth: "Lo": 20 Hz - 20 kHz; "Hi": 20 Hz - 100 kHz.
  • Input impedance: 470Ω. The unit is equipped with terminals to add other input resistors and capacitors.
  • Crosstalk: better than 70dB.
  • Signal-to-noise: better than 70dB.
  • THD: < 0,05 %

   

   

   

• Net weight (2.2 lb = 1 kg)
• 0.5 kg / 1 lb 1.6 oz (1.101 lb)

• Price in first year of sale
• 29.95 gbp

• Literature/Schematics (1)
• - - Manufacturers Literature

• Author
• Model page created by Museum Roggenhofer. See "Data change" for further contributors.

• Other Models

• Here you find 3 models, 3 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from QED Hi-Fi Systems; Ashford, Bishops Stortford