Definitions for key, telegraph

This page provides all possible meanings and translations of the word key, telegraph

The Standard Electrical DictionaryRate this definition:(0.00 / 0 votes)

  1. Key, Telegraph

    The key used in telegraphy for sending currents as desired over the line. It consists of a pivoted lever with finger piece, which lever when depressed makes contact between a contact point on its end and a stationary contact point on the base. This closes the circuit through the line. When released it springs up and opens the line circuit.


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