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Coherer Based Detector Assembly - Marconi, Radio Receiver, 1906-1912 Object Reg. No: ST 18546

Coherer and tapper, manufactured by Marconi's Wireless Telegraph Coy. Ltd. Possibly includes a second coherer marked 018546.

Part of set:
ST 18546 Coherer And Tapper, Marconi
ST 18546.1 Coherer Based Detector Assembly - Marconi, Radio Receiver
ST 018546.2 Coherer And Tapper, Marconi
ST 018547 Morse Inker - Marconi, Radio Receiver
ST 018548 Morse Recorder Reel - Marconi, Radio,
ST 018549 Morse Key - Marconi's Wireless Telegraph
ST 018550 Condenser - Marconi, Radio,
ST 018551 Induction Coil - Marconi, Radio,
ST 018552 Transmit or Receive Mode Switch - Marconi, Radio,

The set should contain a jigger, which might be.ST 021412 (possibly made at Melbourne University Engineering School).
Set comprises coherer (connected to 1 of 9 cells), small tubular copper condenser, one relay (connected to 8 of 9 cells),one jigger (oscillation transformer )(not original). All components are mounted on a wooden base, as well on which is a tin foil condenser, chokes, 5 resistors and 2 shunts.
Acquisition Information:
Donation from A. Nancarrow & Co, 1931
Discipline: Technology
Dimensions: 184 mm (Height), 572 mm (Width), 265 mm (Length)

More information

Tagged with: telegraphy, radios, electrical components
Themes this item is part of: Information & Communication Collection, A timeline of the development of radio, 1821 - 1914, Six significant items from the period of early radio, 1900 - 1914, Early radio: transmission and reception, 1900 - 1914
Primary Classification: COMMUNICATIONS
Secondary Classification: Radio
Tertiary Classification: receivers
Inscriptions: On base: Marconi's Wireless Telegraph Coy. Ltd., / Patent no. 1730. 1905. No. 1048.
Manufacturer: Marconi Wireless Telgraph Co. Ltd, London, Australia, circa 1906
Manufacturer of Component: University of Melbourne (The) Engineering School, Parkville, Victoria, Australia, circa 1906

Jigger was made at Melbourne University Engineering School.

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