[Delk]

It seems to have an address width of 16 bits, there's no mention of a memory management unit, and the website lists its RAM size as 256 bytes, so I'm going to say no, regardless of speed.

The RAM size is of course the most limiting out of those three, but even if it were larger (and one could somehow build it without resorting to integrated circuits), you'd probably run into problems with the other fundamental limits if you wanted fancy things like memory in the order of megabytes.

Of course that's not the point, though, because building an entire general-purpose CPU from scratch at such a human-visible scale and from basic components is a feat in itself.