Monodial AC Super

Wireless World; London

  • Year
  • 1932
  • Category
  • Kit (Parts plus instruction) or building instructions only
  • ID
  • 347283

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Valves / Tubes
  • Main principle
  • Superhet with RF-stage; ZF/IF 110 kHz; 3 AF stage(s); something special ? Please give information (notes)
  • Tuned circuits
  • 9 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 210/230/250 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 2.5 W (undistorted)
  • Material
  • Metal case, TUBES VISIBLE
  • from
  • Model: Monodial AC Super - Wireless World; London
  • Shape
  • Chassis only or for «building in»
  • Notes
  • Monodial AC Super

    An ultra-selective superheterodyne giving high-quality reproduction. Employing a combination of selective tuning and tone correction on the Stenode principle the selectivity is such that any stations separated by 5 k/c can be received without modulation interference.

    Designed by W.T. Cocking and presented in Wireless World on April 13th, 1932.

    Features of the Set.

    • Single-dial, eight-valve AC superheterodyne with variable-mu HF and IF stages.
    • Screen grid 1st  detector, triodes for the oscillator, 2nd  detector, tone corrector, and output stage.
    • Special band-pass filters with a total of eight tuned circuits and one stage of tone correction allow high note reproduction up to 5,000 cycles with extremely high selectivity.
    • Volume control acting simultaneously on the grid bias of both variable-mu valves with an additional local-distance switch.
    • Free field current for moving-coil speaker.
    • Undistorted power output 2,500 milliwatts.
    • Special oscillator tracking arrangements simplify the ganging of the oscillator and pre-selector circuits and secure freedom from second-channel interference.

    Approximate cost of parts, excluding valves, 17 gns.

  • Price in first year of sale
  • 17.00 GNS
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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