• Year
  • 1949 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 50382

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz
  • Wave bands
  • Broadcast only (MW).
  • Details
  • Wire Recorder (or -Player)
  • Power type and voltage
  • Alternating Current supply (AC) / 110-120 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm
  • from Radiomuseum.org
  • Model: ASTRA-SONIC 748 - Pentron Corporation; Chicago
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • AC Operated Combination Phono-Radio-Wire Recorder, Superheterodyne Receiver
    with Loop Antenna
    AM: 540-1620kc

     

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 19 = 1949 and before

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