Catalogue
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Induction Coil, by Marconi Company, London, c. 1906
Inventory Number: 12640
Number of documents: 3
Document Type: Miscellaneous Note
Document Heading: Technical Details - Induction Coil
Text:
A ten-inch induction coil or Ruhmkorff coil was used in the earliest Marconi spark transmitters. The coils are wound in sections and fitted with a well-balanced condenser, specially constructed platinum break-and-make and adjustable discharge rods.
Document Type: Printed Documentation
Document Heading: Reference
Text:
Denman (No. 87) records that this was used in conjenction with a Fleming valve at the Haven Station in 1906, for checking the strength of signals between Clifden and Glace Bay.
Document Type: Printed Documentation
Document Heading: Associated Card
Text:
Associated card states this coil was used in the earliest Marconi spark transmitters.
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