Tektronix 41xx emulator?

[R.Fairwood at ee.surrey.ac.uk]

Does anyone know of an emulator for a Tektronix graphics terminal in the
4100 series (we have 40xx in Tektools)?  I believe we need the 41xx for
grey-level images.  (Specifically, I want to run a PR1ME Medusa (CAD)
package from a Sun, with grey-level shading).

	Electronic mail (uucp) address:
	  rogf at ee.surrey.ac.uk