Boy, that gave me memories of getting my novice class ham radio license. There was still a Morse code requirement at that time of five words per minute. I cou

Boy, that gave me memories of getting my novice class ham radio license. There was still a Morse code requirement at that time of five words per minute. I could barely do it after a lot of practice. My grandfather, who had an advanced class license, could send and understand Morse code at 25 words per minute. He was really good at it. He used a fancier code key called a Vibroplex [1] that could make the dots automatically. [1] https://en.wikipedia.org/wiki/Vibroplex https://en.wikipedia.org/wiki/Vibroplex