We have built a number of large rapid pulsers for Floor D of Fosco's server's community wiki.
D, obviously, is for disco.
Disco seen from the deejay's point of view, with two jukeboxes. I just wish there were more than two records.
The soft lightning is done by a number of extended rapid pulsers. Basically, I took the basic structure of a rapid pulser and extended it sideways with further torches and powder. It works.
Close up of the underlying structure.
The nice thing about this is that it can run indefinitely without any external input (originally, we were fiddling with carts). The bad thing about this is that it does even when unneeded, which causes light updates to lag elsewhere.
A solution would be to put a sensor at the deejay's spot. When the deejay (or an heavy object) is in place, it's disco time. Otherwise, the pulsers should stop.
(A nicer solution could be had if jukeboxes emitted power while they played songs. Alas...)
How can we stop the pulsers?