exciter lamp


noun
  1. a lamp that produces a light that passes through a film soundtrack and impinges on a photoelective cell causing current fluctuations that actuate a loudspeaker.

Origin of exciter lamp

1
First recorded in 1935–40

Words Nearby exciter lamp

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023