993.625.1: Electrocardiograph, Portable, 1951-1970

Additional Images

993.625.1: Electrocardiograph, Portable. Front view of electrocardiograph
Image No. 3671 Front view of electrocardiograph; Photographer: Helen Kingsley

Object Description

Cased portable direct-writing string electrocardiograph, physician's-office model, with handled latching cover. Two electrical cables: a mains plug and a four point lead are stored in a small compartment accessed by a door in the back. The points would have electrodes attached when in use. Three of the points are known as limb leads and are labelled with one of the following initials: 'RA' [right arm], 'LA' [left arm, 'LL' [left leg]. The fourth point is labelled 'CH' [chest lead]. There is a separate compartment to store the paper roll onto which the results were printed as a graph. A specification plate is attached to the back 'Model E, SERIAL NO. E24628'. Case dimensions are given.

Object Classification

Accession Number: 993.625.1
Collection: Diagnostic, Clinical
Date: 1951-1970

Object Dimensions

  • Height: 30.3 cm
  • Width: 39 cm
  • Depth: 25 cm

Object Parts

  • a) Case: base and latching cover
  • b) Electrocardiograph with electrical cords: mains plug and points lead
  • c) Lever switch

Object Materials

  • Bakelite,
  • copper alloy,
  • enameled paint,
  • filament,
  • glass,
  • leather,
  • metal,
  • plasticised coating,
  • plasticised textile,
  • rubber,
  • steel,
  • wood

Acquisition Detail

  • Supplier: Beck-Lee Corporation
  • History of Use: Used to record the electrical activity of the heart.