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* (electronics) A single-coil transformer using taps on the coil to provide equivalent primary and secondary characteristics.
* (geology) A special-type of transformer whose use in mines is limited to apparatus for starting induction motors of the squirrel cage type. The winding is a common one for primary and secondary, and the two circuits are electrically in contact with each other. Mason  <br/>Source: Dictionary of Mining, Mineral, and Related Terms

[[Category: Electronics]]

[[category: geology]]