Croyden Automatic 412 series

Eclipse Radio Pty. Ltd.; Melbourne

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  • Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 170106
    • alternative name: Electronic Industries Ltd

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 456 kHz; 2 AF stage(s); Reflex
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 240 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: Croyden Automatic 412 series - Eclipse Radio Pty. Ltd.;
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Notes
  • This model has "Automatic" tuning. Tuning is performed by a seven position switch only, there is no tuning gang. Note, circuit shows 7 positions but Mingay's "Radio Diagram & I.F. Index" states that an 8 position switch is used.
  • Circuit diagram reference
  • Australian Official Radio Service Manual Vol. III
  • Literature/Schematics (1)
  • Radio Trade Annual 1939 P225.
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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