I'm sorry I sold off this I forget what 19" delay unit back in the early '90's...it was probably not entirely digital. It was a really crazy delay once you get it to some quirky settings...it didn't have any time settings or such, only some values that all went 0 to 100...and when you messed with it, it did not only delay but it somehow cascaded things until it was virtually making music by itself. You'd get these screechs and blimps and yeeowws, weirdest sounds I ever heard. Some of them, especially if you'd have slowed them down, woulda fit some horror film backings quite nicely...or one of those 'haunting' shows, you get the picture.
Damn, I wish I never parted with that one. Don't even know the brand, it was kinda yellow with a red name on it. One 19" space.
I'm not a fan of time-based FX that much...never use delay/chorus etc. except after the fact when recording. Delays just seem like faking it in solos and all the other stuff just destroys the in-your-face immediacy of a good punchy guitar sound.
Sometimes I do play a delay, i.e. play the same riff for instance three times in a row, each time much more weakly, so it sounds just like a delay. I was once asked after a gig what kind of delay I used 'cuz it was always perfectly in tempo, I just had to laugh
BUT as for quirky sounds just now...sometimes I like to punch on OD and comp and let loose my E string till it barely sounds and is way flabby...scrathes on the pickups and lays very lax, and then you get all kinds of crazy rumbles and sounds.
