I think it's okay. It's a little creative, but we're still figuring out how it all works up there, and one man's analogy is as good as another's. I'd probably say "the recollecting device in my memory," so that we think of the memory as the whole rigamarole, comprising both storage and retrieval.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.