Prodigy

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

Data
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  • Year
  • 1958
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 339309

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 200-210, 220-230, 240-250 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Prodigy - Cooper-Smith Brand, H.L. Smith
  • Shape
  • Tablemodel, with any shape - general.
  • Notes

  • Prodigy, 6-watt high fidelity amplifier.

    Sold as a kitset or assembled & tested.

    Specifications;

    Inputs:
    Gram. 8 - 10 mV
    Tape 100 -150mV
    Radio 100- 150mV.

    Controls:
    4 position Selector Switch (78, LP, Radio, Tape)
    Treble and Bass Cut and Lift;
    Volume /On -Off.

    Power available via socket:
    Tuner, 250 V at 40mA DC (decoupled)
    6.3 V at 2 A AC
    Output socket (200 -250 V AC) for gram motor

    Output:
     6 watts undistorted, 9 watts peak; Push-pull ECL82s, ultra-linear.

    Frequency response:
    30 - 25,000 c/s 1 dB.

    Harmonic Distortion:
    -0.2 % at 6 watts.

    Negative feedback:
    -15 dB.

    Output impedances:
    3.75 Ω , 7.5 Ω & 15 Ω

    Assembled & tested £15.15.0, Kit £12.10.0.

  • Price in first year of sale
  • 15.75 GB £
  • Literature/Schematics (1)
  • -- Original prospect or advert (Radio Constructor October 1958, Page 194)
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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