200e

As Jason mentioned, the newer versions of the 250e software produce a
voltage proportional to the stage number.  This can be useful for
synchronizing two 250e's in conjunction with strobed or continuous mode.

The software for the 250e has had numerous updates, to clean up the code
base, fix bugs, and add new features.  Contact Buchla and Associates for
the latest version.

Also, there is a Wikipedia page for the 250e.  Review it and feel free to
edit it as well.

http://en.wikipedia.org/wiki/Buchla_200e#250e_Arbitrary_Function_Generator

Regards, Fred