Mullard Limited was a British manufacturer of electronic components. The Mullard Radio Valve Co. Ltd. of Southfields, London, was founded in 1920 by Captain Stanley R. Mullard, who had previously designed valves for the Admiralty before becoming managing director of the Z Electric Lamp Co. The company soon moved to Hammersmith, London and then in 1923 to Balham, London. The head office in later years was Mullard House in Torrington Place, Bloomsbury, now part of University College London. In 1923, in order to meet the technical demands of the newly formed BBC, Mullard formed a partnership with the Dutch manufacturer Philips. The valves (US vacuum tube) produced in this period were named with the prefix PM, for Philips-Mullard, beginning with the PM3 and PM4 in 1926. Mullard finally sold all its shares to Philips in 1927. In 1928 the company introduced the first pentode valve to the British market. Mullard opened a new manufacturing plant at Mitcham, Surrey in 1929 and in late 1930s Mullard opened a new plant in Blackburn, Lancashire. By 1949 Mullard had produced a number of television sets, such as the MTS-521 and MTS-684 and in 1951 Mullard was producing the LSD series of photographic flash tubes. In the early 1980s, Mullard manufactured the SAA5050, some of the earliest teletext decoding modules made in the UK. In 1957 Philips-Mullard helped to set up the Mullard Radio Astronomy Observatory (MRAO) at the University of Cambridge. Philips continued to use the brand name "Mullard" in the UK until 1988. Mullard Research Laboratories in Redhill, Surrey then became Philips Research Laboratories. As of 2007, the Mullard brand has been revived by Sovtek, producing a variant of the ECC83 and EL34. The Z Electric Lamp Co. continued business into the 1970s operating from premises in Thornton Heath, south London, manufacturing lamps of specialised design but it closed due to the recession in the mid 1970s. Sovtek is a brand of vacuum tube owned by Mike Matthews's New Sensor Corporation and manufactured in Saratov, Russia. They are often used in guitar amplificationA box with a 'Mullard' valve for a radioTop of box : MULLARD / ELECTRONIC VALVE / Side of box; GAURANTEED ELECTRONIC / VALVE / MULLARD ( in a shield) : mullard radio valve co. ltd., london, mullard captain stanley, electronic equipment, moorabbin, bentleigh, cheltenham, early settlers

A barometer is an instrument used for measuring atmosphere pressure thus determining weather changes.The first apparatus generally accepted as a barometer was that set up in Florence in 1644 by Evangelista Torricelli (1608–1647), a mathematician and physicist. Torricelli filled a glass tube with mercury, sealed it at one end, and inverted it with its open end in a dish of mercury. The level always fell a short way down the tube, then settled at a height of about thirty inches. He concluded correctly that the mercury column was sustained by the weight of the air pressing on the open surface of mercury, and further experiments convinced him that the space above the mercury in the tube was a vacuum. He noted that the level rose and fell with changing temperature, but he was unable to use his apparatus to measure variations in the weight of the atmosphere because he had not foreseen that temperature would affect the level of the mercury. News of this experiment circulated quickly among European scientists, who hastened to replicate the experiment. Torricelli's conclusions were not universally accepted because some disputed whether the air had weight, while both Aristotle and the Catholic Church denied the possibility of a vacuum. In France, the philosopher René Descartes (1596–1650) seems to have been the first person, probably in 1647, to attach a graduated scale to the tube so that he could record any changes attributable to the weather. At around this time Duke Ferdinand II of Tuscany organized the first short-lived meteorological network among scientists in other Italian cities, gathering observations of pressure, temperature, humidity, wind direction, and state of the sky.Theis barometer is an example of a household item from the early 20th century, used to determine the day's weather. The barometer is significant as an aid to human social, material and scientific development.Barometer, round, brass housing inset into carved wooden casing (lacquer mostly worn off). Decorative lettering for weather conditions "Stormy, Rain, Change, Fair, Very Dry". Workings are visible through opening in centre of dial. Indicator needle and another adjustable needle . Hook screwed into back of case.flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, barometer, scientific instrument, weather forcasting instrument, weather gauge

These are the Lenses from the Klimsch Commodore Cartographic Camera that was located in Lithographic Squadron at the Army Survey Regiment, Fortuna, Bendigo. The KLIMSCH Commodore camera was originally introduced to the Survey Regiment in 1953 and was the largest in the Southern Hemisphere. It was replaced with a new model of the same size in 1977. These lenses are from this new model. The new model with its computer-based interface provided productivity gains with improved speed and its consistent results led to less wastage in time and materials. Its variomat lens system provided improved retention of map feature linear weights during the camera reduction process. The camera which was specially made for the Australian Army in Germany was fully automatic and power operated. It was claimed to be one of the biggest automatic cameras of its type in the world. It was made to the specifications of the Royal Australian Army Survey Corps to assist in the production of the very high standard maps for the Australian Army. THIS KLIMSCH COMMODORE CARTOGRAPHIC CAMERA was in operation 1977 - 1997". It was a Precision Darkroom Camera especially suited for Cartographic Reproduction of Line, Continous Tone, Halftone and Colour Separation. Reproduction of Negatives and Positives from a variety of Reflection or Transmission Originals. Its characteristics were: Maximum Negative Size 1.27m sq, Copy Holder (Vacuum) 2m sq, Maximum Enlargement 400%, Maximum Reduction 13%, Automatic 60, 90 and 120cm Focal Length Lens, Transmission or Reflection Originals, Pulsed Xenon, Photo Flood or Fluorescent Tube Light Source, Maximum Reflection Original 1.3m x 1.85m, Maximum Transmission Original 1.3m x 1.85m, Exposure Light Monitoring System." The camera was superseded by computerized image manipulation software associated with the Automap system. These significant and extremely high-quality Lenses were retrieved by WYCOMBE Constructions Pty Ltd during the demolishment of the camera in 1997 and then mounted on a display board. See also Item 6189.4P for more photographs of the camera.Lenses from the Klimsch Commodore Cartographic Camera mounted on a very heavy timber display board. The display board contains an engraved plate that describes the technical characteristics of the camera."KLIMSCH COMMODORE CARTOGRAPHIC CAMERA 1977 - 1997", "FUNCTION: Precision Darkroom Camera especially suited for Cartographic Reproduction of Line, Continous Tone, Halftone and Colour Separation. Reproduction of Negatives and Positives from a variety of Reflection or Transmission Originals." "CHARACTERISTICS: Maximum Neg Size 1.27m sq, Copy Holder 2m sq, Maximum Enlargement 400%, Maximum Reduction 13%, Automatic 60, 90, 120cm Focal Length Lens, Transmission or Reflection Originals, Pulsed Xenon, Photo Flood or Fluorescent Tube Light Source, Maximum Reflection Original 1.3m x 1.85m, Maximum Transmission Original 1.3m x 1.85m, Exposure Light Monitoring System." royal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr, litho

Item belonged to Maxwell Lennox Matheson No 418447 RAAF. Refer Cat No1959 for his service record.This device was mounted outside of aircraft, in air stream, generating a vacuum. L = 27 cm. Air tube and coupling at base. Manufactures plaque states "Type B-4 plus misc numbers."venturi, equipment aircraft

Tall timber instrument (incomplete), with glass tubes and measuring indicators. A rubber tube is attached to a flask. The instrument measures volume, but its use is unknown. This item is attributed to Henry Sutton and his work in this field. vacuum pump, henry sutton, scientific instruments

Hand operated Bellows vacuum cleaner. Previously #27 The “Baby Daisy” Vacuum Cleaner is constructed from timber, steel and leather bellows. It has a carry handle fixed to the top. The base is approx. 500mm x 250mm. The height is approx 400mm. On one side is a bracket for a handle (missing) used to operate the bellows. The device is mounted on a foot plate that is split. On one side of the bellows is a circular metal detachable hatch, fixed by wing-nuts. This has a central hole for a tube (missing). Attached internally to this hatch is a cloth dust collection bag. The metal hatch has the following moulded words arranged in a circular fashion. 'DAISY Vacuum Cleaner). There are two brass plates fixed to the side of the cleaner above the hatch. These plates are stamped with 'Rd. No. 518080 and Rd. No. 530353' Gold printed Labels on the side say the following. BABY DAISER Vacuum Cleaner. Registered England. No. 518080/7 No. 530353/08 Trade Mark No.294851 /07 Designs France No. 25469/08 Germany No. 330219 / 08 Further Patents applied for. In the centre of the label is a picture of a Daisy Flower. With the words Iles Patent. This is surrounded by a ribbon with the words. 'The Daisy Registered Trade Mark'. On one side near the base of the cleaner the number '7749' is stamped into the metal.fBaby Daisydomestic equipment, cleaning, vacuum cleaner

Standard Telephones and Cables Pty Ltd was a telecommunications company that began as part of Western Electric, a telephone manufacturing company set up by Alexander Graham Bell. Following the First World War, Western Electric diversified to include electric generators and wireless receivers, all still imported. In 1925, Western Electric was sold to the International Telephone and Telegraph Company. In Australia, it became known as Standard Telephones and Cables (Australasia) They worked closely the Postmaster Generals department to set up telephone and radio networks throughout Australia. Its first factory was in Chippendale, New South Wales but ut developed to have branches in all stated of Australia. By the end of the Second World War STC was Australia's biggest manufacturer due to its critical role in producing telecommunications equipment, domestic radio receivers, telecom cables, military equipment and electron tubes. The company returned to peacetime manufacture. Rather than reduce staff it used its excess capacity to produce electric irons and other domestic appliances including vacuum cleaners and floor polishers. This model was produced at the beginning of the 1950s. It was once owned by Mr. Stiff from Stiff and Gannon, Wodonga.This item has local and national significance. It was used in a local Wodonga business and is representative of domestic appliances used in the 1950s. It also has national significance as it is an excellent example of good produced by the manufacturing industry in Australia during that period.Model 30 Airzone Vacuum Cleaner and accessories. Manufactured in AustraliaMetal logo for Airzone including engine specificationsdomestic appliances, standard telephones and cables pty ltd