You can download the patch here.
Easiest way to use it yourself is to install pd-extended and add rjlib.
Today I was intrigued by sample & hold, and was playing around with noise and what it did. I learned there is a limit to how many delay lines pd likes to have. And how many you can read at the same time before it stops liking you (when yo also capture at the sametime). Oh well, some static for the future to have around 😉