• Year
  • 1950 ?
  • Category
  • Antenna (Aerial) or Coupler
  • Radiomuseum.org ID
  • 323698

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

 Technical Specifications

  • Main principle
  • RF-Circuit or wave trap (separate, can also be an antenna with amp.)
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • from Radiomuseum.org
  • Model: Antenna filter 7297 - Philips; Eindhoven tubes
  • Dimensions (WHD)
  • 50 x 30 x 50 mm / 2 x 1.2 x 2 inch
  • Notes
  • The purpose of this tunable antenna filter was to reduce interference by radio stations with a frequency around the IF of a radio receiver. The model is tunable from approx. 415 - 530 kHz.

    The filter could be mounted in the antenna - ground connector (the height of 30 mm is excluding the two connector pins.)

  • Mentioned in
  • -- Original-techn. papers.
  • Author
  • Model page created by Gidi Verheijen. See "Data change" for further contributors.

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