As far as T/S
units, there's the 1000 (ZX-81), the 1500 (81 on roids), the
2048, basically a 48K ZX Spectrum with better video
Cameron, have you ever seen a US-made TS2048? To my knowledge they
never made it into production.
I found mine in a local thrift store. I don't know where it was made
though.