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Condenser - Marconi, Coil, Radio, circa 1910 Object Reg. No: ST 018550

Coil condenser, manufactured by Marconi.

Condenser is used to reduce sparking across of the contacts of the interupter of a spark coil. It was normally used with a spark coil used in the emergency transmitter set-up of a ship. It is called a 'coil condenser' because it is used in conjunction with a spark coil.

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).
Tinfoil condenser: brown wooden box with screwed down lid; two brass terminals on side. Lid is cracked.
Discipline: Technology
Dimensions: 73 mm (Height), 330 mm (Width), 585 mm (Length)

More information

Tagged with: radios, electrical components, electronics, electrical condensers, capacitors
Themes this item is part of: Information & Communication Collection, Early radio: transmission and reception, 1900 - 1914
Primary Classification: COMMUNICATIONS
Secondary Classification: Radio
Tertiary Classification: transmitters
Inscriptions: Lid: MARCONI'S WIRELESS / MAKERS / TELEGRAPH Co. Ltd. / 191 / (embossed) 5TR
Manufacturer: Marconi's Wireless Telegraph Co Ltd, Chelmsford, Essex, England, Great Britain, circa 1910
  1. [Book], Mr H. Dowsett - Institute of Electrical Engineers, Mr J. Hawkhead, Handbook of Technical Instruction for Wireless Telegraphists, The Wireless Press Ltd., 1915, 1915, 209-211 Pages

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