Caliph PZ Thermometer-light tuning dial

Astor (brand), Radio Corporation Pty., Ltd.; Melbourne

Data
Forum
Pictures
Collections

  • Year
  • 1934
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 164549
    • alternative name: Radio Corp.of Australia

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)
  • 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
  • Wooden case
  • from Radiomuseum.org
  • Model: Caliph PZ [Thermometer-light tuning dial] - Astor brand, Radio Corporation
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes

  • First model of the 1934 Caliph Console with the elongated peephole dial and "thermometer-light" tuning, also referred to as the blinklight tuning model.

    Astor called the later version the Aero Dial Caliph which did not have blinklight tuning.

    Both models used the PZ chassis essentially the same as the Astor Mickey Mouse OZ chassis with the OZ power plug removed and the power cable arranged to enter the hole where the OZ speaker change over switch was mounted.

    This version of chassis could possibly be identified by earlier serial numbers(TBC) and has a saturable transformer connected in the IF B+ circuit which controls the current in a special winding on the power transformer which feeds the dial light. Both Caliph models used the same power transformer which had this additional winding designated “D” on the schematic compared to the OZ.

  • Price in first year of sale
  • 19.00 Aus£
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum