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.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"trams, tramways, mmtb, reports, testing, preston workshops, chopper control, controllers, z class, tram 5

Pamphlet or report printed on A3 gloss paper, folded into A4, with a brown printed cover and a photograph of Z3 117, Melbourne, in Bourke St Melbourne, with the destination of City - Spring Rides and in the route number box "New Tram - Free Rides today". Inside pages and rear cover give details of the trams, its equipment specification, how a chopper control works, car control systems, rotary converter for 24V DC and 220V AC systems, drawings of the trams, and technical data, including a simplified wiring diagram. Produced by AEG - Telefunken of Berlin.trams, tramways, z3 class, aeta, specification, preston workshops, new trams, tram z3 117

Report - "W class Tram Modernisation" from the ttmrail webpage, 2 A4 sheets stapled in top left hand corner, details the changes - DC Traction chopper system, controllers, inverters, controls, drivers cabins, lighting and drivers and saloon heating systems.trams, tramways, ttm rail, braking, electrical equipment, electrical systems, electrical engineering, controllers, w class

Owned by Mrs Leach9cm mouth grinding chamber 11cm long mince exit diameter disc with exit holes and warning to screw this ring up tight. 11.5cm worm to mince the meat controlled by 16cm handle. Another screw moves to hold the mincer to the kitchen table.Enterprise, on chamber: tinned meat chopper No 5; on clamp: MF'G. CO. Phila. U.S.A..domestic items, food preparation