• Year
  • 1967 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 180965

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

 Technical Specifications

  • Number of Transistors
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 475 kHz; 3 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Dry Batteries / PP7: 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3 inch = 7.6 cm
  • Power out
  • 0.3 W (unknown quality)
  • from Radiomuseum.org
  • Model: 4128 - Marconi Co. Marconiphone,
  • Notes
  • This battery powered seven transistor radio has a grey plastic case with a convex front chrome metal grille with the dial above. On the top left hand rear corner a chrome telescopic aerial, next to that is the on/off/volume control knob, then in the middle towards the rear of the radio it has 4 push buttons for wavebands MW (209-565 metres), LUX (Bandspread 184-218 metres), LW (1120-2025 metres) and SW (17.6-51.0 metres) then on the far right it has the tuning knob. The set is powered by a PP7 9 volt battery that is located in the base. Sockets for car radio aerial and earphone.

     

  • Source of data
  • -- Schematic
  • Author
  • Model page created by Keith Staines. See "Data change" for further contributors.

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