Telegraph key - Wikipedia
A telegraph key, clacker, tapper or morse key is a specialized electrical switch used by a trained operator to transmit text messages in Morse code in a telegraphy system. [1] Keys are used in all forms of electrical telegraph systems, including landline (also called wire) telegraphy and radio (also called wireless) telegraphy .
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Telegraph Keys
Dec 1, 2024 · A Pocket Set, or a Pocket Relay, is a small self-contained telegraph set consisting of a tiny key and relay in a case small enough to fit in an operator’s pocket. They were designed to be used by telegraph line workers who had to work …
Parts of a Telegraph (Straight) Key - KD2UJ.COM
These pictures illustrate what I believe are the standard names of the parts of a telegraph, or straight, key. In case you're interested (or even if you don't give a flip), this is a Western Union Legless Key 2A made by J.H. Bunnell & Co., New York. This is the Bunnell "Triumph" key.
Telegraph Key - National Museum of American History
Telegraph keys are electrical on-off switches used to send messages in Morse code. The message travels as a series of electrical pulses through a wire. The operator pushes the key’s lever down briefly to make a short signal, a dot, or holds the lever down for a moment to make a slightly longer signal, a dash.
Straight Keys, Bugs, Paddles, Sounders and Keyers
The simplest and oldest way to send Morse is through a "straight" or "telegraph" key. A straight key is essentially just an electro-mechanical switch with a big lever: at rest the switch is open but when pressed the switch is closed.
History – A Telegraph Key
Developed in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication. The telegraph eliminated dependence on time and distance by connecting people through electricity and code.
Telegraph Key | National Museum of American History
Telegraph keys are electrical switches used to send coded messages that travel as a series of electrical pulses through a wire. Due to special difficulties in sending pulses through long underwater cables, so-called double-current keys were used.
Telegraph Key | National Museum of American History
Telegraph keys are electrical switches used to send messages in code. The message travels as a series of electrical pulses through a wire. This British key was designed for use on underwater telegraph cables. Typical telegraph keys turn the current on and off in the line.
McElroy Telegraph Keys and other Items Page 1 - Amateur Radio …
These telegraph keys were manufactured in Massachusetts by T.R. "Ted" McElroy who billed himself as the world’s fastest telegrapher. McElroy telegraph keys are distinguished by their unique teardrop shape and their fine craftsmanship.