On Saturday, April 16, 2011 12:24:17 PM you wrote:
> On 04/15/2011 08:02 PM, Lamar Owen wrote:
> > On the non-linux side, have a VAXstation 4000 still up, controlling a heavily modified Perkin-Elmer PDS-2020 microdensitometer......aka 'a scanner' even though it weighs 7,000+ pounds avoirdupois.
> 
> Is it something like this? 
> http://www.astro.virginia.edu/~srm4n/engines/PDSMicro.html

Yes, but overhauled.  The left hand image in the top of that page looks like the two GAMMAs we have (Guide star Automated Measuring MAchine).  Hmmm, see 
http://www.pari.edu/library/apda/rooms/ down close to the bottom of the page.