Summary
Coil used to fine tune the primary oscillatory circuit of a spark transmitter. It was also referred to as a strip jigger in the early days of radio.
Physical Description
Open spiral wound copper strip on a varnished wooden board. There are two terminals, one connected to outer end of the spiral. The other terminal would have a lead terminated by a clip, which is placed on the spiral in a position to tune the aerial; the lead and clip are missing.
More Information
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Collecting Areas
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Acquisition Information
Donation from Amalgamated Wireless (Australasia) Ltd., 1940
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Manufacturer
Amalgamated Wireless (Australasia) Ltd., Sydney, Greater Sydney, New South Wales, Australia, 1914-1920
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Inscriptions
Base: AMALGAMATED WIRELESS / (A-SIA) LTD / No 97-3180 SYDNEY. N.S.W. / AUSTRALIAN MANUFACTURE
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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
300 mm (Length), 300 mm (Width), 70 mm (Height)
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References
[Book] Hawkhead, J. C. & Dowsett, H. M. 1915. Handbook of Technical Instruction for Wireless Telegraphists. 310., 1915, 236 Pages
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Keywords
