A telegraph key or Morse key is a specialized electrical switch used by a trained operator to transmit text messages in Morse code in a telegraphy system...

Electrical telegraphs were point-to-point text messaging systems, primarily used from the 1840s until the late 20th century. It was the first electrical...

Look up key or Keys in Wiktionary, the free dictionary. Key, Keys, The Key or The Keys may refer to: Key (cryptography), a piece of information needed...

In a manual system, the sending operator taps on a switch called a telegraph key which turns the transmitter on and off, producing the pulses of radio...

Daily Telegraph, known online and elsewhere as The Telegraph, is a British daily conservative broadsheet newspaper published in London by Telegraph Media...

Although the traditional telegraph key (straight key) is still used by some amateurs, the use of mechanical semi-automatic keyers (informally called "bugs")...

radio-telegraphy, the term "keyer" specifically refers to a device which converts signals from an "iambic" type or "sideswiper" type telegraph key into Morse code...

Morse code. A telegraph operator at the sending end of the line would create the message by tapping on a switch called a telegraph key, which rapidly...

reliability; A telegraph key to operate the transmitter to send short and long pulses, corresponding to the dots-and-dashes of Morse code; and A telegraph register...

systems are thus not true telegraphs. The earliest true telegraph put into widespread use was the Chappe telegraph, an optical telegraph invented by Claude Chappe...