Archon Stereo Amplifier SL101

Archon (Brand) Tansley-Howard Ltd.; London

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  • Year
  • 1960 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 362790

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 20 W (undistorted)
  • Material
  • Metal case, TUBES VISIBLE
  • from Radiomuseum.org
  • Model: Archon Stereo Amplifier SL101 - Archon Brand Tansley-Howard
  • Shape
  • Chassis only or for «building in»
  • Dimensions (WHD)
  • 12 x 6 x 5 inch / 305 x 152 x 127 mm
  • Notes

  • The Archon main stereo amplifier, SL101, was a compact, high-quality, dual-channel amplifier designed by consultant Erich Rosenthal and manufactured by Tansley Howard Ltd. 

    Technical Features

    • Design: The amplifier consists of two 10W amplifiers based on the Mullard circuit, powered by a specially designed mains transformer to minimise hum.
    • Construction: Utilises a low-loading circuit, significantly reducing the idle power consumption of the valves—extending tube life and reducing overheating risk.
    • Internal Layout: Symmetrical, with all valves in a row and transformers at the rear. All connections are along one long side, with the other side part of the base plate for easy access. Components are logically grouped on a single tag board for both channels.

    Performance 

    • Frequency response: Level from 10 Hz to 40 kHz and delivers over 10W output between 50 Hz and 8 kHz; at least 6W from 30 Hz to 14 kHz.
    • Stability: Good on resistive loads; slight deterioration with reactive loads, but acceptable for domestic use.
    • Noise: Crosstalk, hum, and noise are insignificant
  • Net weight (2.2 lb = 1 kg)
  • 14 lb 11 oz (14.688 lb) / 6.668 kg
  • Price in first year of sale
  • 29.40 GB £
  • Mentioned in
  • -- Original prospect or advert (The Gramophone Jul 1960, Page 98.)
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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