graeme hood

A testing set built into a polished timber box with a hinged lid and a carry handle. The semicircular scale reads 1-150. Four voltage ranges and four current ranges are obtainable with selector switches. Connecting diagram inside the lid. Three currentl shunts in storage compartment. Serial Number 52204scientific instruments, testing set, voltmeter, ammeter

Used in the Electrical Department at the University of Ballarat, VictoriaBlack metal lampMaker's metal label. Hand written "NIEDERVOLT LAMPE" on baseniedervolt lampe, scientific instruments, low voltage, electrical, engineering, phillips globe, lamp, 5 volt globe, carl reichert, optische werke c. reichert

Cream plastic cases with clear plastic cover over dials Four knobs on each indicating strength of voltage or amperes

Used to teach physics students - introduction to principles of electric powerA teaching / demonstration model with large scale and transparent panels. Polished wood frameBlack tape on front panel - "PHYSICS"scientific instrument, physics, electric power, voltmeter, ammeter

A cream coloured manual with black writing on the cover. There is written in blue ink 18615 2Lt L.B. Dawsonelectronic manuals, communications, military radios

Type of switch fitted to Melbourne W class trams for switching the line breaker on or off. This switch controls power to the line breaker activated by the tram controller. Had been fitted to the Restaurant tram No. 3 or Cuthberts 939. Was found to be defective - the power was available to the controller even when switched to the OFF position, that is, failed unsafe. Was replaced 4/11/2015 from a spare. Has the name of the manufacturer on the cover. Demonstrates a switch that failed unsafe.Tramcar equipment - line breaker switch - fibre material box and cover containing electrical switch and 10Amp Cartridge fusew class trams, cuthberts 939, switches, line breakers, faulty equipment, safety