Modcomp Mini Photos

Thats a great save. Looks at first glance like a ModcompII. The circuit boards are great.. From the labelling it was one of Johnson Controls JC80 Air Conditioning and Control systems which used Modcomps as the processors. At least it would have clean air. We had a JC80 system here in Sydney Australia which ran the airconditioning for the Sydney Opera House through to at least 1996 or so. It used Modcomp Classics 78xx but what you've got there is earlier than that. I have a range of Modcomps in my collection, ranging from 7870's through to 9230's in the proprietary range, and 9820/30/40's in the Motorola VME based systems, dating from an association in Australia with Modcomp. NASA used to and probably still has a lot of them for uses ranging from the Deep Space Tracking Network to the Shuttle launches.. Modcomp made a VME emulator of the ModcompII for NASA, to replace the orginal computers delivered in the seventies, because it was easier to replace the Shuttle launch systems with an emulator than to rewrite and recheck all the launch code.. Cheers Ken Kirkby Terrigal Australia.