• Year
  • 1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 172625

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

 Technical Specifications

  • Number of Tubes
  • 10
  • Main principle
  • Superhet with RF-stage; ZF/IF 456 kHz; 3 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 200-220; 220-240; 240-260 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 931T - Lekmek Radio Laboratories;
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes
  • This model has a tuning light driven from a saturable core reactor. Later versions used a 6U5 tuning indicator. The type 80 rectifier drives the speaker field coil and provides bias for the 6A3s. Two power transformers are used.
  • Circuit diagram reference
  • Australian Official Radio Service Manual Vol. I I
  • Literature/Schematics (1)
  • Mingay's Radio Diagram & I.F. Index
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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