High Fidelity Amplifier BP1

Cooper-Smith (Brand), H.L. Smith & Co. Ltd.; London

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  • Year
  • 1957
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 339310

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 200, 220, 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case, TUBES VISIBLE
  • from Radiomuseum.org
  • Model: High Fidelity Amplifier BP1 - Cooper-Smith Brand, H.L. Smith
  • Shape
  • Chassis only or for «building in»
  • Notes

  • High-Fidelity Amplifier, BP1.

    Specifications:

    • Output: 10 watts, rated 12 watts peak
    • THD: Better than 0.15% at 10 watts
    • Frequency Response: Within 1 dB, 20-25,000 c/s
    • Noise & Hum: 80 dB below rated output
    • Negative Feed Back: 18 dB
    • Output Stage: Push-Pull, Class A ultra-linear
    • Output Impedances: 2-3 Ω & 12-15 Ω

    The Control unit plugs into the octal socket next to the rectifier.

    Main Amplifier: £14.5.0, Kit £12.5.0.
    Control Unit: £10.17.6, Kit £7.17.6.

  • Literature/Schematics (1)
  • -- Original prospect or advert (Radio Constructor Dec 1957, page 338)
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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