Home > LEO Computers > Lyons Electronic Office (LEO) Archive > CMLEO/LS - LEO Comput ... s Society Collection > Photographs > Photographs of LEO I > 61856 LEO I Test Rack (1950)

61856 LEO I Test Rack (1950)

Description of Photograph

Digital copy of a photograph of a LEO I test rack installed in the 'calculator room' at Cadby Hall.

Caption:  'A test rack for testing and powering up newly made units. [ms] 20/6/50'

This image appears in the interactive plan for our Virtual LEO I installation, p65.


Research comments: This image offers a good sense of the Cadby Hall room as the workshop it was. As individual units were built in one corner of the room, they were tested in this rack before being added to the machine. The basic frame for the units is visible in the foreground and glass valves can be seen on the unit to the very corner at the bottom left of the image. (LM)

Digital copy made by John Daines, LEO Computers Society, of a photograph in the LEO Computers Collection (formerly part of the National Archive of Historic Computing) at the University of Manchester Library: NAHC/LEO/B1-19

Date: 20th June 1950

Physical Description: 1 digital image (jpeg); black & white; image includes original typed caption

Archives Hub References: CMLEO/LS/PH/1/61856

Other References: DCMLEO20210214017
Related Topics:

Comment on This Photograph

This exhibit has a reference ID of CH61856. Please quote this reference ID in any communication with the Centre for Computing History.

Photograph of 61856  LEO I Test Rack  (1950)

Copyright Unknown

Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum