Adjective modifier

• aural: It's an LP called Spooks In Space by the Aural Exciters from 1979.

Modifies a noun

• unit: The igniters receive the electrical output from the ignition exciter unit.

• lamp: Exciter lamp [ F ] A light in a projector that enables the optical soundtrack to be read.

Noun used with modifier

• ignition: This assembly incorporates two coils fed with high voltage from the two outputs of the ignition exciter.