This used Springray is fully functional and in very good condition.
A true spring reverb is an almost magical device. Deceptively simple in concept but capable of producing extremely rich and hauntingly beautiful sounds. Not just a retro novelty; spring reverbs are still used extensively whether it is nailing a classic dub reggae sound, adding some shimmer to a synth riff or creating some space on a vocal track in a big studio. This is a reverb that rewards real-time tweaking: crank the feedback, sweep the filter and play with the ghostly feedback drones that ensue. Better yet, try animating them with CV and inserting other modules into the feedback path.