This item was acquired by the Ballarat School of Mines Electrical Engineering department for use in electric power laboratory as a source of D.C., and also for instructional purposes. This central mercury arc element was located in a cabinet with transparent side panels, and equipped with the required electric accessories, to be a self-contained stand-alone unit. Head of the Electrical Engineering Department at the time was John M. Sutherland.Mercury arc rectifier, 3-phase input. Constructed of blown glass, and complicated configuration: the central inverted truncated cone is provided with 3 large diameter "horns' and four smaller ones. Each horn has electrical connection to outside, some have side horns. Approximately half a cup of free mercury inside the glass complex. No. 33369scientific instrument, x-ray, x-ray tube, xray, john m. sutherland, electrical engineering, ballarat school of mines

DEFINITION microfarad Posted by: Margaret Rouse WhatIs.com Contributor(s): Kenda, Jack Clements The microfarad (symbolized µF) is a unit of capacitance, equivalent to 0.000001 (10 to the -6th power) farad. The microfarad is a moderate unit of capacitance. In utility alternating-current (AC) and audio-frequency (AF) circuits, capacitors with values on the order of 1 µF or more are common. At radio frequencies (RF), a smaller unit, the picofarad (pF), is often used. This unit is equal to .000000000001 (10^-12) µF. In RF scenarios, capacitances range from about 1 pF to 1,000 pF in tuned circuits, and from about 0.001 µF to 0.1 µF for blocking and bypassing. At audio frequencies (AF), capacitances range from about 0.1 µF to 100 µF. In power-supply filters, capacitances can be as high as 10,000 µF. Capacitor, 1/3 M.F.D. (microfarad) within wooden insulating box. Two terminal posts set in an insulating box. Maker's name and place 1/3 M.F.D No. 34402scientific instrument, capacitor, electrical engineering, laboratory

What device converts AC to DC? rectifier A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification, since it "straightens" the direction of current. The unit was used at Ballarat School of Mines in the Maths, Science and Physics Departments.Grey metal unit with Dials on the front and vents at the back. Handle for carrying. Two switches for turning on and off. Yellow sticker - SMB - with number 116071. Engraved on back - S.M.B.. Maths / Science / Physics Sticker on cord indicating inspection of unit - 13/04/2005. Tag Number - 032735alternating current, direct current, ac, dc, rectifier, electrical, ballarat school of mines, science, maths, physics

Unit members in the photo: Back row: Peter Herd, Mick Stewart, Ian Bunston, Russ Bradley, Bob West, Peter Reid, Norm 'Doc' Willoughby, Brian Hinneburg, Claude Gillard, _______ , Kevin Hatfield, Ian Hicks, Mack Hinds, John Woodruff. 4th row: Geoff Smith, Phil 'Juni0r' Meakins, Phillip Roff, George Wing, 'Bluey' De Clerk, Bob 'Canada' Johnston, Jim Walsh, Mike Hicks, Ern Jeffries, Carl 'Dutchy' Hulsbergen, Leigh Power, __________ , Norm 'Mick' Kennedy, Ray Bunyard, Jack Murray. 3rd row: Jeff Tomlinson, ______ , Vince Nehill, Jim Stephens, Bert Boatwright, Bill Leach, Bob Reid, Peter 'Padre' Bowden, ______ , Frank Read, Peter Higgins, Bill Salmon, John Hutchinson, Gus Kongas, Tony Poole. 2nd row: Roman Stuczynski, Stan Polan, Allan Moore, Don Bergman, Col 'Ali' Barbour, Peter Askew, Ron Smith, OC Major John Hutcheson, Adj Capt John Pritchard, Lt John O'Rourke, Ron Scott, George 'Taffy' Drakopoulos, Ted Malone, Ray Sanders, Kevin Collins, Barry Creighton. 1st row: Tom Massey, Mick Thurlough, Glen Watterson, Joe Frazer, Warren Hutchings, Max Coulson, Graham Gould?, Maurice 'Elvis' Priestly, _______ , 'Bluey' Darlington, 'Bluey' _____ , _____________ , 'Tich' McIntyre, Jim Trainor. Proovided by Jim Trainor.One of a very few photos only of (almost) the complete personnel of 2 Cdo Coy in its early years. B & W group photo unframed, 5 rows tiered, 73 men in winter battledress at the 2 Commando Company depot at Ripponlea, Melbourne in 1958. A separate document names most of the men. Described by Jim Trainor as Ripponlea pay parade July 1958. 2 commando company - 1958 - pay parade - ripponlea depot - unit personnel

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

The Wessex was used between 1964 and 1984 by the Australian Navy in Australia and Oceania. This helicopter, no 31, also use for disaster relief in Darwin after Cyclone Tracy.Manufactured in Britain from a USA design, the Wessex was jet powered (Napier Gazelle), a multi-role helicopter used in air sea rescue, anti-submarine, ambulance, troop and freight carrying. Dependent on the mission profile, the aircraft carried a crew from three to five including two pilots.Includes a full set of Royal Australian Navy insignia and carries the Serial No. N7-221 and Navy Side No. 31.RAN Roundel. Navy Registration N7-221. No31, a/c safety markings. Tiger Head Unit Logo of 816 Sqnhelicopters, military equipment, wedssex, troop carrier, navy

Light brown top with dark brown base telephone keyboard. Made of plastic with sockets for the handpiece of a phone, a QWERTY keyboard and small (5cmW) printer, possibly with a screen. Used to take and send telphone calls. Uses batteries and has a handle for carrying. On top: "PRINTACALL/SSI-220" On back: "SSI / INNOVATIONS IN COMMUNICATIONS" On bottom: in middle of metal plaque "SSI-220 / Power: DC 6V/ Type "C" x 4 / (RECHARGEABLE BATTERY) / SPECIALIZED SYSTEMS, INC. / SAN DIEGO, CALIFORNIA / MADE IN JAPAN / SERIAL NO. 02478" On sticker on back: "MODEL. SSI-220 / SERIAL NO. 84840001 / Printacall Pty. Ltd. (02) 2648104 / P.O BOX A623 Sydney South 2000 N.S.W. Australia." Inscribed on R side: "HEIDELBERG HIGH SCHOOL / HEARING IMPAIRED UNIT NO 3" Label on L side: "TELECOM AUSTRALIA / Permit No 08216 103/2"

In 1940 doctors started experimenting with curare for use with electric shock therapy. Electric shock therapy regularly caused broken bones, including vertebrae, and all sorts of dislocations. The intensity of convulsions was high and couldn’t be controlled. During the 19th Century curare was unsuccessfully used to treat rabies, tetanus and epilepsy. By 1935, Harold King had isolated tubocurarine, curare’s active ingredient. In 1942, Harold Griffith successfully used standardised curare (Intocostrin) with cyclopropane. Within five years synthesised muscle relaxants were available. Intocostrin, combined with an anaesthetic agent, was a break-through for this treatment.Solid wooden box with three separate sections inside box. First section contains electrical lead for attaching unit to mains power. Second section contains ECT unit and controls. Third sections contains electrical lead ending in plugs for holding in hands. Sections cannot be separated out, they form one unit.Etched on to the face of the internal unit: PROPERTY OF / THE ROYAL WOMEN'S HOSPITAL Label tape affixed to top of the lid: E.C.T. UNIT OP. THEATRES R.W.H.anaesthesia, muscle relaxants, electroconvulsive shock therapy, women

Long term loan from Neurological Society of Australasia Museum of Neurosurgical Instruments , South Australia Catalogue with Historical Commentaries Second Edition January 2006 Copy located at RACS MuseumSTUART MORSON'S MECHANICAL INJECTOR FOR ANGIOGRAPHY. Stuart Morson(1913 - 1980) of Sydney had this injector constructed in or before 1952. It is said that it was not used much. The injector embodies two 10 ml and two 20 ml Record syringes coupled to a single delivery system. Each is operated by a piston. The pistons are driven from cylinders drilled in a metal block within the casing of the injector; the motive power must have been hydraulic or pneumatic pressure delivered through a manifold with taps allowing each syringe to be worked in isolation. The casing also contains two linked micro switches operated from a distance; it is unclear what was the role of these switches, and it is possible that a component of the unit is lost. JB Curtisl stated that a mechanical injector was devised in 1949 for serial angiography by his collaborator Schuster, but was not felt to be safe enough for use. For many years, neurosurgeons and neuroradiologists preferred to inject by hand.

A41 Centurion Main Battle Tank.This tank carried a crew of four - a Commander, Gunner, Loader and driver. It was powered by a Rolls Royce V12 Meteor petrol engine and it had a top speed of about 34 kph. It had a 5 speed crash box transmission and drum brakes. There was a twenty pounder main gun and two machine guns. This tank has been fitted with items that were used in Vietnam as well as the items carried by crews for their own comfort. These items cover the four tours by Centurion MBT in Vietnam - C Sqn, B Sqn, A Sqn & C Sqn, who served two tours. Most tanks also carried several stretchers, mainly for use of the infantry. Army registration number/ serial number: 169016, Unit marking 106, WIDOW MAKER on gun barrel. centurion tank, tank, transport

While not receiving as much publicity as the F-105 and F-4 fighter-bombers, which took the fight into the heart of North Vietnam, the B-57 Canberra was nevertheless the first jet-powered American attack aircraft committed to the conflict.canberra (military aircraft) -- history., vietnam war, 1961-1975 -- aerial operations, american, airplanes, military -- markings -- united states, canberra bomber

The Lister Auto-Truck was a small monowheel tractor built for moving light loads around factories, railway yards and similar sites. They were built by R A Lister and Company of Dursley, Gloucestershire, well known for their range of small stationary engines The Auto-Truck was one of several monowheel tractors to appear in the 1920s and '30s, with the availability of small, reliable petrol engines, as developed for motorcycles and the stationary engines for which Lister were already known. These were tricycle vehicles, with the single leading wheel used for both drive and steering. Their simple construction carried most of the mechanism on this wheel as a single unit, the chassis with the trailing wheels being little more than a trailer for balance. Simplicity was a key feature. The engines were single-cylinder and air-cooled. Ignition was by magneto, rather than requiring a battery and electrical system. One of these designs was produced in the 1920s by George Grist of the Auto Mower Co., Norton St Philip, Somerset. The engine was a JAP 600 cc four-stroke air-cooled sidevalve, a typical small engine of the time. The Auto Mower Co. were Lister agents and when Lister heard of this 'Auto-Truck' they bought one for use in their own factory. It was used to carry heavy engine castings from the foundry to the machine shop. Lister customers saw them and there was such interest in wanting to buy them that Lister negotiated with Auto Mower to build them under licence. Although Lister were already well known for their small petrol stationary engines, these were heavy cast-iron engines with water hopper cooling and unsuitable for vehicle use. Lister remained with the JAP engine for the Auto-Truck. The Auto-Truck was designed for use in factories or other places with smooth surfaces of concrete or tarmac. This allowed the use of small solid-tyred wheels with only simple suspension, making the vehicle simple, cheap and lightweight. They had little ability on soft surfaces though and could even topple over if driven carelessly across slopes. Their design was a compromise between the top-heavy nature of the tall engine grouping above its wheel and a well thought-out chassis for stability. The bearing between them was a large diameter ring roller bearing, mounted at the lowest part of the chassis. This gave rigidity and stability, even after long wear. A ring of rolled channel girder was attached to the engine group and rollers on the chassis carried the load upon this. On early Auto-Trucks this bearing is set very low, in line with the chassis members, and is covered by thin steel plates. The front panel of the engine cover is distinctive with large ventilation holes and a Lister signature cut through it. Strangely this panel is made of thick cast iron, providing substantial weight high on the engine and only adding to its top heaviness. To improve visibility of moving vehicles in noisy factories, this panel was often painted white, the rest of the vehicle being Lister's usual brunswick green. The driver was seated on a Brooks bicycle saddle, which in recognition of the lack of vehicle suspension, was carried on the end of a cantilevered bar that acted as a leaf spring. A wide handlebar on the engine group was used for steering. A squeeze bar the width of this handlebar engaged the clutch. Controls included a hand throttle, a gear lever with two forward and one reverse gears, and a large handbrake lever. The engine unit rotated freely for a full 360° rotation. When used in reverse, the Auto-Truck could either be driven from the saddle, looking backwards over the driver's shoulder; or they could dismount, swivel the engine unit around and control it as a pedestrian-controlled truck from behind. Under the engine cover were two equal diameter tanks, a fuel tank for petrol and a shorter oil tank. Engine and chain-drive lubrication used a total-loss oil system, controlled by a small pump and needle valve. Info Ref: Lister Auto-Truck - Wikipedia https://en.wikipedia.org/wiki/Lister_Auto-TruckHistoric - Industrial monowheel tractor for moving light loads around factories, railway yards and similar sites.The Lister Auto-Truck - small monowheel tractor Made of steel with three wheels. Powered by a J.A.P single cylinder petrol motor which is Hand Cranked to start.Lister puffing billy, lister, lister auto truck, monowheel tractor

This mikiphone has an approximate manufacture date of circa 1926. It is stamped in the interior with the maker’s mark of Palliard Cie (St Croix), who partnered with the patent owners, Nicolas and Etienne Vadasz for the large scale production of the mikiphones. A Mikiphone – or Pocket Phonograph is one of the earliest versions of a portable music player. The Mikiphone was small enough to fit into a pocket for portability, and once unpacked had the ability to play 10” records. Power was supplied to the unit by a small hand crank, and sound was amplified by a small resonator. It is estimated that 100,000 to 180,000 of the units were made between 1924 and 1927. Luxury editions were also available with either a gold or silver casing. Le Corbusier is quoted as saying he could ‘see in the Mikiphone the essence of Esprit Nouveau’. The pocket gramophone is significant for historical and social reasons. It is primarily an enabler of leisure activities due to its portability and size. The design of the object is also significant as it showcases design advancements in the early part of the 20th century. The Swiss made "Mikiphone", the smallest talking machine ever placed on the market folded up to the size of a large pocket watch or small cheese case. Production stopped in 1927. A total of 180,000 were made. A few were made in a luxury version with gold or silver case for a "Pretentious clientele".Inside on dial: Mikiphone / Pocket Phonograph / Swiss made / System Vadasz. Outside: Pocket Phonograph / Mikiphone / System Vadosz / Patented in all countries.pocket phonograph, mikiphone, gramophone, pocket, music player, swiss made, switzerland

The donor received the projector from a relative. He used it in the City of Whitehorse and surrounding areasWaterworth Slide Film Strip Projector, Model A - 300 watt, without a fan but with ventilating slots on top and an open bottom for air to flow. It has a carrying handle and a power lead with 3 pin plug which is wired in permanently. The projector lamp is at rear under the carrying handle. Image is projected through three stage lens via via the image on the 35mm strip or slide. The front lens is adjustable for focus. A knurled nut enables a height adjustment at front. Slides are inserted through the holder - whilst one slide is shown the other can be loaded ready to be slid in front of the light. The film strip holder is missing. The unit is finished in a grey hammer finish paint used in 1960 t0 1980s. The operating instructions are filed in the supplementary envelope. The projector is stored in a hand made three ply hinged box.Waterworth Hobart 5553Aphotography, projectors

Purchased by donor from Myer Emporium c1965. Used at home until 20000 to show slides of the familyAn Aldis 2000 35mm cartridge Slide Projector with an orange slide on top to slide in each slide to be viewed from a 40 slide cartridge on the side of the projector. Focus adjusted by turning lens at front of the unit (Projar f=85mm - 1300 - Gottingen). Height adjuster at front and power switch at back. A cotton twine covered covered power cable with three pin plug - overall length - 250cm. Three plastic slide cartridges and a plastic box for two of the cartridges is included. A total of five pieces.Rank Aldis; Aldis 2000; Serial No 10836photography, projectors

In one place in records Pat Faggetter is credited with the donation of this item. It would appear that Pat picked it up from Mrs Coldrey so I have credited Mrs Coldrey as the donor. See also page 10 of green folder. (Ted Arrowsmith)OTICISCOPE An early slide projector. Large, black square unit with chrome parts. Bellows to assist in focus can be slid up to 26cm. On the end of the bellows is screwed a further adjustable lens (8.5cm diam by 11cm long). The body of the unit can be tilted to focus on the screen. This lens is endorsed '8 inch (26cm) high focus Aldus UNO Projector Lens'.This lens and a lamp is stored inside the projector. The projection lamp is an Osram (balloon shaped) patent registered 260 volt Gas Filled 500 watt 51. Made in England. Screw fitting .Power supply is by early English type two pin plug with a toggle switch on left side.Ensign Optiscope No. 6 - Made in Britain - Ensign Ltd - London.photography, projectors

The Ferranti Sirius is an electronic second-generation transistor computer and is one of three remaining examples of this machine left in the world. It was an important addition to the computing facilities at Monash University in the early 1960s and provided access for computer programming and research for many early computer professionals, academics and teachers. The Ferranti Sirius computer was built in a period of rapid growth in computing technology. The first stored program computers appeared in the late 1940s and used individual designs with valve technology. By the mid-1950s valve technology was replaced by transistors and the first mass produced commercial computers became available. The Ferranti Sirius was announced in 1959 and offered a “small” academic computer. It was designed and built by the English company Ferranti Ltd and sold through a local office of the company in Melbourne. The Sirius was manufactured at the Ferranti Ltd.’s West Gorton, England factory from 1959 to 1963 and, in all, the company produced probably 22 installations although only 16 were actually recorded as sold; this included one at Ferranti’s Bureau in London and one at Ferranti’s Melbourne Bureau. Only 7 were exported and 4 of these 7 were located in Melbourne, Australia. All four were associated with computing at Monash University – the Sirius in the MMoCH collection was purchased by Monash University in 1962, a smaller Ferranti Sirius was used on the Caulfield campus (prior to amalgamation with Monash University) from 1963, the Ferranti company had its own Ferranti Sirius initially temporarily installed at Clayton campus in 1962 and then placed in their office in Queens Road, Melbourne. A fourth computer was purchased by ICIANZ (now Orica) in 1962 and was transferred to Clayton campus in 1967. Only two of these Melbourne examples have survived; one in the MMoCH collection and one at Museums Victoria. There is an example of the Ferranti Sirius in the Science Museum Group collection in the UK as well. The Ferranti Sirius in the MMoCH collection was the first computer purchased by Monash University and it was shipped to Australia to be installed by November 1962. The University had a similar model computer on loan from Ferranti Ltd during the first part of the year and it was returned to the office of the company in Queens Road, Melbourne once the University’s own machine was installed. The computer was placed on site at Clayton campus, Monash University. The computer operated from 1962 until 1972 when it was officially decommissioned. The Ferranti Sirius was sold to Mr Paul Stewart in late 1974 and removed from Monash University. Mr Stewart later donated the computer back to the University in 1988 and it was transferred to the collection of the Monash Museum of Computing History after 2001. The Ferranti Sirius is an electronic second-generation transistor computer and is one of three remaining examples of this machine left in the world. It was an important addition to the computing facilities at Monash University in the early 1960s and provided access for computer programming and research for many early computer professionals, academics and teachers. The Ferranti Sirius is of scientific (technological) significance as one of the early transistor digital computers that transitioned computing from first-generation valve computers to second generation commercial installations. This example of the Sirius is of historical significance in its role as a part of the Computer Centre, Clayton campus, Monash University which provided computing facilities in Melbourne in the early 1960s when there were few installations available for academic, administrative and commercial users. Staff and students were able to undertake investigative research and learn programming techniques. The Computer Centre encouraged the use of the computer across all disciplines and this provided the base to establish computer science as a subject offering and, later, a new department in the University. This growth in computer education eventually culminated in the establishment of the Faculty of Information Technology, Monash University. The Ferranti Sirius in the collection at Monash Museum of Computing History has a main unit with a CPU and memory combined with input/output equipment and one extra cabinet of memory. The Central Processing Unit is a floor-standing unit which contains the computer circuits, power supplies and has a decimal digit display panel and a normal clock. A moveable control panel is placed in front of the Unit (Currently set on a recreated desk/filing cabinet support in the display). The Sirius base unit uses acoustic delay line memory with 1000 word store. An additional 3000 word memory cabinet is set adjacent to the CPU and can be connected to increase the memory. The computer is supported by a range of input/output devices. There is a Ferranti Paper tape reader, located on desk in front of CPU. Red label on front “Ferranti tape reader. Type TR 5. Serial No. 477”. Adjacent to the CPU is a set of Simplified tape editing equipment in three pieces which includes a (1) Table unit with switches on front face. Metal tag on reverse reads “Creed & Co. Model No. S4060. Serial No. 1457. Original Customers Marking GRP7 V706”. The table has a numbered internal tag “Table Serial No. 198579. (2)Creed teletype set on table unit. Metal tag on reverse “Creed & Co. Model No. 75RPR K4M4. Serial No. 5897 Made in England”. (3)Creed paper tape reader set on table unit. This set of equipment could read paper tape and print it, or copy paper tape while allowing it to be edited, or allow a programmer or data preparation person to type and punch a new program or data. It has no electrical connection to the computer. Paper tapes were usually torn off and carried across to the computer. There is also another table unit with switches on front face and changeable setting switch on front right side which holds a Ferranti Westrex paper tape punch set. Label on reverse “Teletype Code BRPE11” This was the Computer’s only output device. BRPE-11 is a teletype model number.

Used to rain ambulance staff in the detection and management of patient heart rhythms. Simulator was hooked up to operational monitor defribulator and operated so that the monitor defribulator simulated patient rhythms of different types. This particular unit was used at Frankston South and by the Metropolitan Ambulance Service Regional Training Unit. Documentation with item shows that it was serviced and operational in 2005.Blue plastic carry box containing technical item, instruction manual, menu card and servicing report. 3 separate power cables included.LAERDAL MEDICAL FRANKSTON SOUTH REGIONAL TRAINING UNIT