Ken Shirriff's post from 2019 is trending on TwoStopBits, and for a reason: it's a great post about 80x25

https://www.righto.com/2019/11/ibm-sonic-delay-lines-and-history-of.html

IBM, sonic delay lines, and the history of the 80×24 display

What explains the popularity of terminals with 80×24 and 80×25 displays? A recent blog post " 80x25 " motivated me to investigate this. The ...

@nina_kali_nina I really want to try and make a delay unit. But I suspect it’ll be an exercise is pain