This is two seperate oberheim samples, played through a sampler and strangely resonating at the end. The resonation at the end is completely absent when either sample is played by itself. The worble at the end is a product of the two sounds mixing in my sampler. Cool, eh?.
16 mm moviola, sounds like projector, sound of the tape hitting the reel while playing, end of reel, tape turns around itself, stop machine, recorded with schoeps ms.
Test recording using pair of nt55 omni mics mounted end to end (using modified female-to-female xlr coupler) in a blimp. Recording on quiet but breezy day in norfolk village garden: sounds of birds etc. And, towards the end, a car going past. Recorded via sound devices mixpre-d and tascam dr70d. No processing except normalising.