Zenith 7A28A Switzerland Ch= 5705A Europa-Skala

Walser, Conrad; Zürich

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  • Year
  • 1936
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 335087

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superhet with RF-stage; Export model
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and 2 x Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 25 to 133 Hz, 110; 125; 150; 200; 220; 250 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Zenith 7A28A Switzerland Ch= 5705A Europa-Skala - Walser, Conrad; Zürich
  • Shape
  • Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
  • Dimensions (WHD)
  • 16.3 x 22 x 13 inch / 414 x 559 x 330 mm
  • Notes

  • The Zenith 7A28A is the export version of the Zenith 7S28. This model here was imported by Conrad Walser in Zürich, Switzerland. It includes the Long Wave band, making it a 4-band model. You can see the Swiss stations Beromündster, Sottens (for French), Monte Ceneri (for Italian), and Basel / Bern.

    Long Wave from 150 (145on scale) to 370 kHz, Broadcast Band from 550 to 1650 kHz but in reality starting at about 530 kHz (Beromünster). Short Waves 13 m to 43 m and 40 m to ca. 160 m. This is just ending at the start of the Broadcast Band. This band shows more than 80 written stations and is exceptional for that time - especially for that "propeller type scale".

     

  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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