• Year
  • 1961
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 127135
    • alternative name: S.Smith and Sons

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Number of Transistors
  • 1
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 470 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 12 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 502T - Radiomobile Ltd., Cricklewood
  • Notes
  • Push button permeability tuning. Transistor OC82 provides AF amplification. Valves operate with 12 volt HT. A reversable plug facilitates for either + or - earth. A seperate audio power amlifier unit is required with this model. A choice of 4 amplifier units were available A (OC26 2.5W), B (2x OC26 push-pull 5W), K (as A but seperate heat sink) & L (as B but seperate heat sink).
  • Source of data
  • -- Schematic
  • Literature/Schematics (1)
  • Paul Stennings Vintage Radio Service Data Vol 1
  • Author
  • Model page created by Keith Staines. See "Data change" for further contributors.

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