Regis - HTTP 1.1/418 Teapot on Nostr: Happy birthday to the 19" equipment rack, which turns 100 next month. From the July, ...

Happy birthday to the 19" equipment rack, which turns 100 next month. From the July, 1923, Bell Systems Technical Journal: "All panels are to be of a uniform length, designed to mount on vertical supports spaced 19>< inches between centers. The height of the different panels will vary, according to the amount of apparatus in each unit, but this vertical dimension is in all cases to be a whole multiple of 1-3/4 inches."(p139 at https://archive.org/details/bstj2-3-112/page/n27/mode/2up )