Countess 580

Thom & Smith Pty. Ltd.(Tasma);Mascot, NSW

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  • Year
  • 1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 173261
    • Brand: Tasma

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superhet with RF-stage; ZF/IF 458 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 135 & 2 & -1.5 & -4.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Countess 580 - Thom & Smith Pty. Ltd.Tasma;
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes
  • For operation from air cells for L.T., the 1D5G and 1F5G valves were used. Otherwise the 1M5G and 1L5G were used. This model became a vibrator set with a model V2 vibrator unit plugged in. When used this way the valve filaments were connected in parallel across one cell of a 6 volt storage battery and the 4 volt vibrator unit was connected across the other two cells. This radio had three position switched variable selectivity.
  • Circuit diagram reference
  • Australian Official Radio Service Manual Vol. I I
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Tasma Service Data, Drawing No. 353.)
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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