High Definition Stereo Control Amplifier HD250

Radford Audio Ltd.; Bristol

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  • Year
  • 1974
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 330350

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

 Technical Specifications

  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 120; 130; 220; 230; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 100 W (180 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: High Definition Stereo Control Amplifier HD250 - Radford Audio Ltd.; Bristol
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 17 x 4.75 x 11 inch / 432 x 121 x 279 mm
  • Notes

  •  The HD250 is a stereo integrated preamplifier and power amplifier for operation with a turntable, tuner and two tape machines. It is rated at 50 watts RMS continuous output power per channel into any impedance from 4 ohms to 8 ohms. The preamplifier section is similar to the Radford ZD22 High Definition Stereo Pre-Amplifier Control Centre.

  • Net weight (2.2 lb = 1 kg)
  • 21 lb 0 oz (21 lb) / 9.534 kg
  • Mentioned in
  • Il Manuale dell'HI-FI, Lato Side 32 Editor, page 94.
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Radford HD250/ZD22 dated 12/74)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Brochure dated February 1974)
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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