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. Handles for carrying. Two circuit breaker switches, two DC output sockets, two AC output socketsYellow sticker - SMB - with number 116069. Engraved on back - S.M.B.. Maths / Science / Physics Sticker on cord indicating inspection of unit - 13/04/2005. Tag Number - 032725alternating current, direct current, ac, dc, electrical, ballarat school of mines, science, maths, physics, ac/dc, scientific instrument

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

"Rag Tearer AC-9" - Befama Bielska Fabryka Maszyn Wlokienniczych; sole exporters: Metalexport, Warsaw, Poland, c.1950.Pamphlet for a Rag Tearer AC-9 by Befama Bielska Fabryka Maszyn Wlokienniczych; sole exporters: Metalexport, Warsaw, Poland, c.1950.textile machinery textiles - recycling, metalexport bielsko textile machinery works, textile machinery, textiles - recycling

MEDIUM: Photograph DESCRIPTION: C.type print Black outer frame with glass panel White board inner frameCertificate of authenticity on reverse of imagephotograph, ellis, angus, young, ac dc

"Hard Thread Opener AC-8" - Befama Bielska Fabryka Maszyn Wlokienniczych; sole exporters: Metalexport, Warsaw, Poland, c.1950.Pamphlet for the Hard Thread Opener AC-8 by Befama Bielska Fabryka Maszyn Wlokienniczych; sole exporters: Metalexport, Warsaw, Poland, c.1950.textile machinery, metalexport bielsko textile machinery works

Silk Maps were produced by Great Britain and United States during WW2 some 3.5 million Silk Maps and cloth maps were produced for Allied Military Personnel.This Silk Map is an original map from the WW2 era.An oblong, cream colour silk map, Asiatic Series.AAF Cloth Map-Asiatic Series Side 1 - No 34 Southeast China Side 2 - No35 - Northeast Chinaww2, silk map, great britain, united states

This AC generator operated for the State Electricity Commission in the Ballarat North Power Station prior to World War Two. James Oddie of Ballarat has an association with Thomas Parker of Elswell-Parker. In early 1887 Oddie arrived in England seeking information on electrical knowledge and its developments. At this time Henry Sutton was teaching Electricity and Magnetism at the Ballarat School of Mines. Oddie stayed in the United Kingdom for around three years and during that time became a close friend of Thomas Parker and his family. The two first met at the first official running of the Blackpool tram, and Oddie was invited to visit Parker at Wolverhampton. Over the years Thomas Parker kept newspaper cuttings (mainly Australian) relating to James Oddie and his work. The following article is a description of the Wolverhampton works by James Oddie, and was collected by Thomas Parker. After the dinner at Blackpool, Mr. Parker visited me, and cordially invited me to see his extensive works at Wolverhampton, an invitation I was not slow to avail myself of. This was the keynote of the best friendship I made in England. I went shortly afterwards and stayed several days, visiting the works daily, as Mr. Parker gave me the run of the whole works. There I ordered the installation of a 60 light dynamo, with a 28 cell storage battery and paraphernalia, now doing duty at the Observatory. I subsequently visited the works frequently, sometimes for a week at a time, and I regard it as the brightest spot in my English constellation. Mr. Parker started his works in 1880, with one man beside himself. He never had a single day’s instruction in electricity in his life; now he daily instructs between 300 and 400 employees, who worship him as a father. He is said to be now the most practical electrical engineer and mechanist in Europe. During one of my visits I took with me an artist, who is painting for me a portrait, 6 feet by 5 feet, of Mr. Parker, surrounded by dynamos, secondary batteries, measuring instruments etc. Electric tram cars are going to be a big thing in England. Parker’s Company Limited, is now, with three other companies, in the hands of the Electric Construction Company, with Mr. Parker as manager of the lot. The whole of the works will be taken to Wolverhampton. Before I left, a tender for £50,000 was accepted for the construction of new works.AC Generator painted read and black on a stand. This AC generator operated for the State Electricity Commission in the Ballarat North Power Station prior to World War Twogenerator, ac generator, elwell-parker ltd, state electricity commission, sec, ballarat north power station, james oddie, wolverhampton

14 pages, illustrated.

An original coloured painting of a Lockhead AC 150 ghost Rider on a dirt tarmach. In front of the Ghost Rider there are three soldiers standing near supplies.painting, soldiers, vietnam lest we forget, lockhead ac-130

Wooden Plaque 15cm x 13cmRSL Washington DC Sub-Branch

Would have been used by staff and students of electrical Engineering at the School of Mines, Lydiard St. campus up until the start of the Mount Helen campus E building third floor. The meter would have had limited use in classes until 2009. This Wattmeter became part of the historical collection in 2011 after the movement of Engineering out of the E building. In working condition and a good example of early 20th century electrical instruments.A polished natural timber case with partial flip top lid and leather carry handle, housing a single phase AC Wattmeter, rated at 170 volts , 30 amps Scale 0 to 5 kilowatt. Serial no :210088Schematic diagram on inside lid showing how to connect the Wattmeter to measure a 3 phase balanced load. Paper sticker on top "1/92" Information for voltage and current ranges painted with white paint on left hand side by Voltage terminals Voltage terminals labelled A and N Also white on black "W8" on same surface Aluminium plate "67" on right hand side near current terminals which are engraved To A and Ti A to indicate current flow direction Aluminium sticker with Ballarat CAE Electrical Engineering by carry handleeverett instruments, single phase, wattmeter, electrical, scientific instruments

Statue of Sir Rupert James Hamer, AC, KCMG, ED (29 July 1916 – 23 March 2004), generally known until he was knighted in 1982 as Dick Hamer, Australian Liberal Party politician, was the 39th Premier of Victoria, serving from 1972 to 1981.treasury gardens, dick hamer, statue

Historical Details: The AARG aircraft as NC13782, the 32nd DC-2 to be constructed, was one of the first ten DC-2's purchased by famed American WW1 ace Eddie Rickenbacker in October 1934 to create his famous "Great Silver Fleet" at Eastern Airlines in the USA. Replaced by D. Description: The Douglas DC-2 holds an important place in world and Australian aviation history with its success in the 1934 England to Australia Air Race. Operating as a scheduled KLM airline service, with passengers and airmail, a DC2 PH-AJU "Uiver" placed outright. Level of Importance: Nationaldc2 uiver

Mr Webb King was an Air Raid Warden during World War 2. These badges were found when his workshop was being cleared out, and so were donated to our society. The badges in our possession do not have the word WARDEN printed on them, like the image of the badge shown on the Darebin Heritage 'Air Raid Protection Services (ARP)' publication, or the image of a badge offered for sale on ebay. At this stage we are uncertain of why this is so. If anybody knows the answer then please leave a message on this site. During World War 2 Australian municipalities were expected to take precautions against air raids, with the Government campaigning to recruit men over 45 to be volunteer Air Raid Wardens. It was also common for women to become wardens. Wardens carried gas masks, helmets, and rattles or whistles. The wardens received 7 to 8 one hour sessions of training, and their chief duty was to advise people of precautions to take, and to ensure those precautions were taken. Air Raid Precautions included air raid drills, shelters (usually trenches), first aid, fire fighting, rescue of 'gassed' persons, evacuation drills, demolition and repair squads, monitoring of blackouts. Melbourne was deemed vulnerable to aerial attack because of its centralised port and industrial facilities and so Anti-aircraft guns were installed in Maribyrnong. By early 1942 more than 60,000 people voluntarily carried out Air Raid Precautions duties according to the Autobiography of Robert V. J. Padula OAM. As the threat diminished during 1943 and 1944 the need for air raid precautions was slowly reduced, and some shelters (trenches) were filled. The two photos showing Air Raid Wardens are out of copyright and have been sourced from the 'Argus Newspaper Collection of Photographs, State Library of Victoria.' The image showing one warden on Swanston Street Melbourne has been cropped to remove extras not connected with the photo. Other sources of information for this report are: (1) http://bpadula.tripod.com/autobiography/id100.html, (2) https://www.awm.gov.au/exhibitions/underattack/mobilise/precautions.asp, (3) http://heritage.darebinlibraries.vic.gov.au/article/57. The ARP badges are a historic reminder of the precautions that were taken in Victoria during the early years of World War 2. The precautions were an effort to minimise the harmful effects of a theoretical air raid. The war started to turn and so an air raid never came, however many people received valuable training in what precautions needed to be taken.Pressed metal round badges with pins. Main feature of badges is the large whitish lettering ARP on a red background. A black outlined crown and the word VICTORIA in red on whitish background is also on the badges. At the bottom of the badges in black are the letters DC plus the numbers of the badges.Serial Numbers of the badges are: DC 361, DC 362, DC 364, DC 368, DC 370, DC 374, DC 375, DC 376, DC 377, DC 379, DC 388, DC 389.arp. arp badge, air raid precautions, air raid precautions warden, warden, badges

Book - 16 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard C.43-1927, "Parallel sided carbon brushes for DC Commutator Machines". Dated Dec. 1927. Provides an index and information about carbon brushes including drawings.On top right hand corner has stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat" and date "19 May 1928".trams, tramways, tramways, electrical equipment, motors

Has label on back of tin, refer photo, with description and part number 19/738 dated 05.04.71

Report or Specification 8 A4 pages, photocopied held within a clear plastic folder with a black binding strip on the left hand side, titled "A Flexible Supply for DC Traction Networks". Produced by ASEA Brown Boveri Industrial Pty Ltd, 1991 giving details of mobile substations, characteristics, and the equipment provided including a photograph. Lists substations provided between 1984 to the MTA, South Australia, Skitube, and the PTC.In ink on the top right hand corner "1991 Tram Substations"trams, tramways, ptc, substation, asea, power supply, mta