amplifying device
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A new amplifying device for transoceanic cable was tested for 20 years before A. T. & T. decided to install it in a sample cable.
From Time Magazine Archive
Dr. Free was demonstrating a new amplifying device which he and N. Y. U.'s Carl Johnson had developed.
From Time Magazine Archive
