spark coil

American  

noun

Electricity.

1. a coil of many turns of insulated wire on an iron core, used for producing sparks.

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spark coil British  

noun

1. an induction coil used to produce spark discharges

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Etymology

Origin of spark coil

First recorded in 1895–1900

Example Sentences

See Examples For:

spark coil

The big brother took another degree, A. M. The young brother accepted his fortune and buckled down to work, for a shoe company, an optical company, the General Electric Co., a spark coil company.

From Time Magazine Archive

In wireless telegraphy, a spark coil sets up waves in the ether and other coils similarly "tuned," receive the waves anywhere in the universe.

From A Rational Theology As Taught by the Church of Jesus Christ of Latter-day Saints by John A. Widtsoe

Don't try to operate your spark coil with 110-volt direct lighting current without connecting in a rheostat.

From The Radio Amateur's Hand Book by A. Frederick (Archie Frederick) Collins

The ends of the secondary coil lead to two binding posts, which are usually placed on top of the spark coil and it is to these that the spark gap is connected.

From The Radio Amateur's Hand Book by A. Frederick (Archie Frederick) Collins

To charge a condenser a spark coil or a transformer is used and the ends of the secondary coil, which delivers the high potential alternating current, are connected with the condenser.

From The Radio Amateur's Hand Book by A. Frederick (Archie Frederick) Collins