Physical description

Report - 149 A4 pages, brown comb bound, orange card covers with two pasted on labels on the front cover. Titled "Chopper Control for Trams". Funded by the Australian Government Transport (Planning and Research) Act 1974, prepared by the MMTB Engineering Department Technical Services Department.



Gives an introduction to chopper control technology, summary of the findings of the study, 25% saving in energy. Has a table of contents on page 8, many graphs, including impact of regeneration on W class tram, electromagnetic impact and many photographs of the test equipment. Includes the test program.

Inscriptions & markings

Front and back covers stamped "Tramway Workshop Library Preston", and in top right hand corner in ink "(Z Tram #5) (1977) " and in pencil "Spare Copy"