Summary
Telefunken capacitor, used for short wave wireless transmission. Made by A. W. A. in Sydney, Australia. Capacitors are also known by the term: condenser.
The capacitance of the five connected capacitors is 1.7 nF (about 2 Jars); measured on 1 August 2012 using a Digitech QM1538.
Physical Description
Black wooden block supporting two ribbed white vertical insulators, which, in turn, support a horizontal plate, which, in turn supports six horizontal glass tubes, each closed at one end . Each tube is covered by metal foil covering 80% of the length. The six tubes are held together by two coiled springs.The open end of each tube is stoppered by a cork each with a terminal. All six terminals are connected together by metal bars, There is a single terminal below the tubes at the same end of the device. The central rod has been removed from one of the tubes so only five tubes are actually connected electrically. It is stored in a plastic bag attached to the object.
More Information
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Collecting Areas
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Acquisition Information
Purchase
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Manufacturer
Amalgamated Wireless (Australasia) Ltd., Sydney, New South Wales, Australia, circa 1914
Date is a guess based on the date of transfer to the Museum. -
Inscriptions
On horizontal plate: AMALGAMATED WIRELESS (AUSTRALASIA) LTD / MARCONI TELEFUNKEN SYSTEM / SYDNEY N-S-W. / NO. 97/484
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Brand Names
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
310 mm (Width), 130 mm (Depth), 185 mm (Height)
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