Notebook kept by Ernest Lenaerts during his work on the LEO computer, dated 31st January to 1st May 1956.

Includes entries:
NB22-002: 31st Jan 1956
NB22-003: Planning Ahead
NB22-004: Stacking patterns in store. 2nd Feb 1956
NB22-006: Planning Ahead
NB22-007: Staff Reviews
NB22-010: Copy Order. Test Program
NB22-011: 11 Feb 1956
NB22-014: Solartron re power supply for Test Rack. 
NB22-018: 17th Feb 1956
NB22-019: 18th Feb 1956. Installation of Coder Units
NB22-020: Manual Controls
NB22-022: Organisation of Assembly Procedure
NB22-023: Recording
NB22-026: 28th Feb 1956. Conditions for Stepping Computer
NB22-028: 1st Mar 1956
NB22-034: 6th Mar 1956
NB22-037: First Thoughts on Grouping of Marginal Test Circuits
NB22-039: 7th March 1956. Test Programs
NB22-042: Jobs
NB22-044: 12th Mar 1956
NB22-045: Block Schematics necessary for Assembly
NB22-046: 14th March 1956
NB22-049: Tests on Adder Subtracter Circulation
NB22-050: Notes on Assembly of LEO II-2
NB22-051: 16th Mar 1956
NB22-054: 20th Mar 1956
NB22-058: 22nd Mar 1956
NB22-059: 26th Mar 1956
NB22-062: Assembling LEO II-2
NB22-063: Store
NB22-064: 2nd Apr 1956
NB22-065: Next Orders to be tackled
NB22-067: 6th Apr 1956
NB22-068: 9th Apr 1956
NB22-070: 10th Apr 1956
NB22-073: 15th May 1956
NB22-074: Vital requirements
NB22-077: 18th Apr 1956
NB22-078: Senior Staff for Maintenance and Assembly
NB22-079: 20th Apr 1956
NB22-082: 24th Apr 1956
NB22-086: Operating Control
NB22-088: 1 May 1956
NB22-091: [draft diagrams]


The Lenaerts notebooks are being digitised and transcribed as part of the National Lottery Heritage Funded LEO project at The Centre for Computing History.  We are indebted to our team of volunteers for scanning and transcribing the notebooks. If you would like to get involved with our work on these fascinating documents, please get in touch!

Provenance :
The notebooks are being digitised while on loan to The Centre for Computing History from the LEO Computers Society, with the kind permission of the Lenaerts family.