• Year
  • 1939
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 117753

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 128 kHz; 1 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Power type and voltage
  • Alternating Current supply (AC) / 100-260 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: MAS94 - Mullard Wireless, London see
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 22 x 11.75 x 9 inch / 559 x 298 x 229 mm
  • Notes
  • Three‑band superheterodyne broadcast receiver covering:

    • LW: 708–2000 m
    • MW (BC): 175–585 m
    • SW: 13.8–51 m

    Tuning scale illumination uses 8091D lamps (6.3 V, 640 mA).
    Rear connectors provided for second loudspeaker and pick‑up.

    The model belongs to the Philips/NSF 94‑series family and is comparable with:
    NSF H94A, NSF‑Aristona H94A, NSF‑Aristona RA94A, SFR‑Radiola RA94A, Philips 717A (asymmetrical case), and Philips 680A.

    Push‑button system
    Equipped with the Linodyne preselector system using nine buttons, arranged left to right as:

    • 3 for LW or MW
    • 3 for MW only
    • 1 for manual tuning (LW, MW, SW)

    Cabinet
    Wooden cabinet with a Bakelite front panel.

    Documentation note
    The technical manual 94A lists dimensions and weight identical to the Philips 680A, although the cabinet form differs.

  • Net weight (2.2 lb = 1 kg)
  • 10.2 kg / 22 lb 7.5 oz (22.467 lb)
  • Literature/Schematics (2)
  • -- Original-techn. papers. (Mullard service manual)
  • Author
  • Model page created by Keith Staines. See "Data change" for further contributors.

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