Contains documentation for various versions of the SETAR (Serial Event Timer And Recorder). It was used for recording physiological and behavioral data in the 1950s. Items date through approx 1949-1967. All papers by Norman T. Welford, and various other authors.

Paper drafts of book 'QL-Home Finance' by Buzzz Software
3 A4 Graph Print-outs, likely from QL Home Finance.

Numerous blueprints for SETAR Mk IV rolled into a tube and wrapped in brown paper
Blue folder titled 'SETAR Mk. IV' - history of development & general outline - contains cutout photo of machine.
Blue hard binder containing diagrams & images of SETAR & punched tape. Covers SETAR Mk III, Model 11 SETAR, Fels Model.

Norman T Welford's Resume. multiple pages, in A4 pocket.

Card folder containing:

• The Times Supplement on the Computer in Industry, Tuesday October 3 1961. Broadsheet, folded
• The SETAR: An electronic Digital Event Recorder and its use in a Psychophysiological Laboratory by Norman T Welford. Booklet, reprinted from Computers in Psychophysiology by Herbert Zimmer.
• also contains A4 pocket containing newspaper cutting from Saturday Telegraph April 26 1952, 'The National Institute of Industrial Psychology is carrying out an interesting experiment at Electrolux, in co-operation with the Nuffield Research Unit of Cambridge University.'

Card folder containing hand-drawn and printed SETAR circuit diagrams, Douglas Electronics

Large card folder containing:

• Black folder containing paper given by Norman T Welford at Int. Cent. Med. Ele. (?) July 16-21 1961 NY.

• Paper: Digital Methods of Producing Random and Variable Time Intervals, Norman T. Welford, Fels Research Institute. September, 1966

• Stapled booklet: The SETAR: An Electronic Digital Event Recorder and its uses for recording Physiological and Behavioral Data

• Stapled Papers: Technical Note: An Accurate Repeat Cycle Timer, 1967.

• Folded booklet: Individual Differences in Heart Rate Variability in The Human Fetus, Reprinted from American Journal of Obstetrics and Gynecology. 1967.

• Folded sheet: A Design for a Reliable and Inexpensive Biphasic Stimulator, 1963.

• Stapled paper: Recording Physiological and Behavioral Data using the SETAR. 1961.

• Stapled paper: The Analysis of Cardiac Arrhythmia Utilizing the SETAR Mark III and an IBM 1620 Computer, 1963

• 5 x Blue stapled paper: Computer Identification and Measurement of Cardiac Cyclic Activity. Norman T. Welford, Beatrice C Lacey, 1964.

• Pocket containing notebooks: 

  • Handwritten 'GR' notebook from 1949-50 contains various contacts and notes.
    • contains 4 circuit diagram drawings on loose sheets of scrap paper.
  • Large notebook 1950-52 notes, one loose sheet.
  • Large notebook 1952-1955, many loose sheets. 

• Manchester University Computer Inaugral Conference report, containing relevant paperwork, invite, letter, two diagrams. Just some interesting names from the delegate list: 'Turing A. M, Wilkes Dr M. V., W. S. Elliott of Elliott Bros., and Ferranti Sir Vincent De'.

• Paper in poly pocket: An electronic digital recording machine - The SETAR reprinted from the Journal of Scientific Instruments, vol. 29, 1-4 January 1952

• Poly pocket containing two stapled sets of sheets containing summary information on the SETAR.

• Yellow stapled booklet: The SETAR: An electronic Digital Event Recorder and its use in a Psychophysiological Laboratory (perhaps an identical copy earlier in this listing).

  • Contains a letter to Norman T Welford from R. T. electronics, confirming that all models of SETAR incorporate his basic design.

• The American Psychologist Journal, Vol 10 issue 9 September 1955, contains Norman T. Welford's paper 'Let's reduce statistical drudgery'

  • Contains his letter submitting the paper.

• Poly pocket containing repeats of published papers by Norman T. Welford.

• Poly pocket containing:

  • an envelope containing 4 x 35mm slides to be scanned
  • a Kodak photo wallet containing:
    • an 'Electronic Study of Working Rates' cutting, 
    • 4 black and white photos of computer parts (modules?)

• Poly pocket containing two large black and white prints of Norman T. Welford working at Cambridge Psychological Laboratory, one also featuring Alan T. Welford.

• Large paperclipped bundles of sheets titled 'N. T. Welford H-2004 III a', likely a project proposal.

  • Also contains a paper 'Progress report on the Human Performance Contract H-2004' by Robert W Ramsey, 1957. One enclosure is submitted by Dr Welford.

• Card folder containing loose sheets of notes and drawings, copious correspondence between r Welford and R.T. Electronics, technical description and advert material for the SETAR, invoices, and quotations.

This exhibit has a reference ID of CH60643. Please quote this reference ID in any communication with the Centre for Computing History.