Four A4 manilla wallets of plans, brochures, research data, etc relating to Klystron testing and research into microwaves at Ferranti. The circuit diagrams and research notes explain the process of developing microwaves using Klystron magnets, travelling wave tubes (parametric amplifiers), oscilliscopes, transistors and semi-conductors. Research papers of H V Botley into microwaves and Klystron testing at Ferranti 1950-1970
Two product catalogues showing various types of cotton spinning machinery the company produced. Catalogues for doubling and winding machinery, and opening machinery 1919-1920