Ekco model U353 radio

Ekco U353 radio. Red and white cabinet with a white louvred speaker grille, an EKCO badge and a black tuning scale with a knob at each end

The Ekco U353 is a British valve radio introduced in 1959, manufactured by E.K. Cole Ltd. of Southend-on-Sea, Essex. It is an interesting example of late-1950s radio design, combining traditional medium- and long-wave reception with the then relatively new VHF/FM broadcasting.

Valves:

  • UCC85 – VHF/FM front-end
  • UCH81 – AM frequency changer
  • UF89 – Intermediate-frequency amplification
  • UABC80 – Detection and audio preamplification
  • UL84 – Audio output
  • UY85 – Mains rectifier
  • DM70 – Visual tuning indicator

SERVICE MANUAL PREVIEW

The original Ekco service data for the U353 is available to members. Here's a taste of what's inside.

First page of the Ekco service data for the U353, with a photo of the radio
Front page
Circuit diagram of the Ekco U353
Circuit diagram
Drawings of the Ekco U353 chassis with the parts labelled
Chassis views
Table of valve voltages and currents for the Ekco U353
Voltage and current data

These pictures are faded on purpose, just for this preview. Members get the complete service data sheet, unfaded, to view and download.

The service data sheet includes:

  • The full circuit diagram
  • A description of the AM and FM circuits, including the ratio detector
  • Step by step alignment for AM and FM
  • Valve voltages and currents, and heater voltages
  • DC resistances of the windings
  • Drawings of the chassis, with the parts labelled
  • How to fit a new drive cord and drive the pointer
  • How to remove the chassis

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