Portogram A33

Portogram Radio Electrical Ind. Ltd.; London

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  • Year
  • 1954 ?
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 371036

 Technical Specifications

  • Number of Tubes
  • 3
  • Valves / Tubes
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Changer (Record changer)
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 250 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Portogram A33 - Portogram Radio Electrical Ind
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes

  • Table model record reproducer using the same 3‑valve beam‑tetrode amplifier chassis as the A28. Housed in a walnut‑veneered cabinet, with optional console conversion kit (four legs).

    Feature Specification
    Power supply 110/250 V AC
    Amplifier 3‑valve beam‑tetrode output
    Pickup “Studio” high‑fidelity crystal
    Turntable Collaro 3‑speed automatic mixer‑change
    Speaker Permanent‑magnet elliptical
    Speeds 33⅓, 45, 78 rpm
    Cabinet Walnut table cabinet; optional console legs
    Price 33 gns tax paid (console legs + 3 gns)

    The A33 is the furniture‑styled version of the A28 portable, sharing identical electronics and performance. Advertised as convertible to a console model.

  • Price in first year of sale
  • 34.65 £
  • Mentioned in
  • -- Original prospect or advert (The Listener Aug 26, 1954, p.338)
  • Literature/Schematics (1)
  • -- Original prospect or advert (The Gramophone Jul 1955, p. xlix.)
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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