[SFDXA] History of the Morse Key

[Bill]

*From QRZ:

History of the Morse Key*
Since the first Morse telegraph systems were introduced, an enormous 
variety of Morse keys or telegraph keys and keyers have been constructed.

 From Straight keys including the Camelback Morse key, to automatic 
Morse keyers such as the Vibroplex, their development has seen many new 
innovations, and enormous changes in style.

Even today many people enjoy sending Morse Code using these Morse keys. 
While some may say that they are simply a switch, this is most certainly 
not the case. Morse keys have been the subject of over 300 patents in 
the USA alone, and they have undergone a considerable amount of 
development. The way in which keys have developed since the very first 
ones used by Morse himself is a fascinating story. Some styles of key 
are quite familiar, whilst others have quite unusual attributes and as a 
result many people find collecting keys a fascinating pastime.

Watch this video about the history of the Morse key

There is also a text page on the Electronics+radio website
http://www.electronics-radio.com/articles/history/morse-code-telegraph/morse-key-development.php

https://youtu.be/yw9z82COjU8