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With 1024 ms of memory & store up to 1 sample at a time!
Without a manual, it's hard to get this unit to sample and delay in the manner you seek, but the controls are simple, so you can poke around at it.
This was given to me by a musician friend. Made in the 1980s as a rack unit, it's not as versatile as an Alesis Midiverb, but you can run riot with layered sampling and delay rates.