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Sounder

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Sounder 

the simplest telegraph apparatus for the audible reception of Morse code. It is an electromagnet with two coils and an armature, which is restrained by a coil spring. The range of deflection of the armature lever is limited by screws. The telegraph operator hears the knocking of the lever against the screws. To amplify the sound, the sounder is placed in an acoustic resonator. Sounders were used with Morse apparatus in the late 1920’s and early 1930’s; however, they did not become widespread, since they do not provide a record of the signals.
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"For once, dear Robert," she wrote, "my judgment has turned out to be sounder than yours.
My Lady's Money by Collins, Wilkie View in context
Then thou shalt give me to drink but two drops of the balsam I have mentioned, and thou shalt see me become sounder than an apple.
Don Quixote by Cervantes, Miguel View in context
Though why a top should sleep sounder than anything else I never could understand.
Anne of The Island by Montgomery, Lucy Maud View in context
 
 
 
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