131 Divisional Locating Batteryplaque, current, army

22nd Field Battery RAAplaque, army

102nd field battery RAAplaque, current, army

This slide projector, which was purchased new in 1949, could be used on mains power or a car battery. It was used by Deaconess Hilda Fisher (Graham) as she travelled to promote the work of the Methodist Home Mission in Victoria and the inland of Australia.Tri-purpose SVE projector in its carry box. Picturol Model DD.115 volts, 150 Watts. Serial No. 12710. Includes two two inch semi-automatic slide changers, one in its original box; four six volt globes and electrical leads for connection to a car battery. Five pieces in all.methodist inland mission, deaconess hilda fisher, methodist deaconess, women's home mission league, methodist home mission

Gold bearing ore is pulverized by cast iron stampers (steam driven) and material then passes over a large copper plate covered in mercury causing the gold particles to combine with the mercury to form an amalgam which is scraped of and placed in a retort. The retort is heated causing the mercury to evaporate leaving the gold to be refined into ingots. The mercury is cooled as it leaves the retort and is reused. A second tray covered in what is called a blanket traps any fine gold that has passed the first plate. Finally the residue material goes over a vibrating table called a Wilfley Table which captures any iron pyrites which may contain about three percent gold. this is roasted and treated to recover any remaining gold at a special treatment plant.Wooden model of a five heads gold stamper battery. The gold stamper battery is a device for crushing ore. The parts of the battery are cams; dies; guides; kingposts; mortar box; shoes; stamps (or stampers); tappets. gold mining, mining equipment, gold stamper

Documents: Manilla folder - licences to treat tailings with various plans and notes attached. Various notes - tailings licences Central Nell Gwynne and Monument Hill. Plans for areas applied for on leases 10852, 10166,10423,10238. Plans - area applied for tailings licence applications for leases/water right licences. Prospectus Nell Gwynne(BML) Mines N/L. Various notes relating to above Monument Hill Consol. Battery sites and water right licence.MCCOLL RANKIN & STANISTREETbusiness, gold mining, mccoll rankin & stanistreet, monument hill gold mine, battery, water right

Used by Manning Pharmacy, Flinders Street Railway Station, Melbourne, until 1984.Black metal battery case with a globe at one end in the shape of tongue depressor, top and base unscrew from battery holder.Label on base 'Manning . Chemist . Melbourne.

Heavy cast Aluminium box with hinged lid. Colour is drab olive. Each end has a belt loop. There is a semi rotating clip on the front of the lid section to hold it shut. Inside are Morse Key, 3 switches, Buzzer Assembly, 3 terminals and a built in battery box. Inside the lid are the circuits for the device and operating instructions. On lid is stamped 'D^D'. On front is "Wireless Remote Control Unit A, Serial No. 18017. Inside is marked serial 18017. Inside on Battery cover is: - “Wireless Remote Control Units 'A'./ Stromberg Carlson Serial No....... 1941” Inside on front panel is :- “Serial No. 18017/ D^D Vac No. ZA 7533".wireless remote control unit, signals, army, morse code

Artillery Battery Photo probably Britishphoto, army

8/12 Battery RAA headquartersplaque, varios, army

Colour photograph of a battery operated calculator.calculator, mathematics

After the 1939 bushfires, the Forests Commission Victoria invested heavily in a radically new communications network. After suffering some inevitable delays due to the war, radio VL3AA switched into full operation in October 1945 proudly beaming out 200 watts across the State. But by today’s standards, the technology was primitive and the reception poor unless the user was on a high point somewhere. The radio signal was "line-of-sight" and bounced between fire towers and relay transmitters across the mountains back to the District offices. The advent of solid-state electronics in the 1960s replaced the more delicate valve sets which enabled greater use of vehicle mounted radios. The Commission continued to research, develop and build new radios at its many workshops around Victoria. The network was supported by a large team of skilled radio technicians. The more secure and versatile State Mobile Radio (SMR) digital trunk system came into operation in about 1995. Upgraded Tait Radios were purchased in 2014 after recommendations of the 2009 Bushfires Royal Commission. But it was the convergence of separate technologies such as 5G mobile phones, high-capacity and light-weight lithium batteries, Wi-Fi, the ever-expanding internet, cloud data storage, digital cameras, GPS, personal organisers and hundreds of supporting Apps into powerful smartphones and tablets which revolutionised bushfire communications from the mid-2000s. Portable radio with handset Includes battery pack in vinyl carry case and carry strap With socket to attach external aerialModel Ebushfire, radios, forests commission victoria (fcv)

Motorola Portable radio Saber UHF mullti Channel Small antenna Metro portable radio PR 196Motorola battery premier Ni cad Australia

Item issued to Malcolm Stuart Angus No 3112710, served Vietnam.Drab olive coloured Battery operated Torch.“Made in England 6230-99-910-5033”military-equipment, torch

Used in the field on South Australian Projects by Terry Peacock and others.Bought in 1990 this was the first type of mobile phone used in the field by ATCV. Mobile Telephone handset, battery in carry case. Manufacturer was Motorola. Distributor Telecom Australia (later Telstra). Also CVA asset no. on leather carry case.australia, telephone, mobile, telecom, motorola, south, 1990

Photo Heavy Morter Battery probably Britishphoto, army

COPY OF LITHGRAPH OF PORT PHILLIP BATTERY 1869local history, photography, photographs, mining

A battery operated emergency life buoy light4.88emergency light, safety at sea

Stamper Dolly” (Octagonal) from Government Batterystawell

Used to warn traffic of hazardsBattery operated traffic warning light - greenforests commission victoria (fcv), safety equipment

The first commercial digital hearing aid was created in 1987 by the Nicolet Corporation. The hearing aid contained a body-worn processor that had a hardwire connection with an ear mounted transducer. While the Nicolet Corporation’s hearing aid was not publicly successful and the company shortly folded, it was able to start a competition between companies to create more effective hearing aids. Two years later, in 1989, the behind-the-ear (BTE) digital hearing aid was launched. In addition to the Nicolet Corporation, Bell Laboratories expanded upon the hearing aid business by developing a hybrid digital-analog hearing aid. When the hearing aid was put on in the market, it was instantaneously successful. This development helped bring major changes to the world of the hearing aid. The next major milestone was creating an all-digital hearing aid. The Oticon Company developed the first digital hearing aid in 1995, but it was only distributed to audiological research centers for research on digital technology in the realm of acoustic amplification. The Senso was the first commercially successful, all-digital hearing aid, and was created by Widex in 1996. After the success of the Senso, Oticon began marketing their own hearing aid, the DigiFocus. Presently, the digital hearing aid is now become programmable. By making the hearing aid programmable, it has allowed hearing aids to be capable of regulating sound on their own, without using a separate control. The hearing aid can now adjust itself depending on what environment it is in and often does not even need a physical volume control button. Silver metal case with side clips and hearing aid attached. Has battery compartment for AA batteries. Volume control is the top left hand corner. "C OF A/CALAID/36778" on back of case deaf children australia, hearing aid, calaid