Looking for information about TEP FTI990, Eyring PDOS

Camiel Vanderhoeven iamcamiel at gmail.com
Fri Mar 25 13:24:36 CDT 2016

Hello everyone,

Over the course of the past few days I've made a few repairs to a TEP
FTI990, a TMS9900 based industrial microcomputer built on eurocards. I've
now got it to the point where it boots and runs Eyring's PDOS operating

I have a description and pictures of the system here:
http://vaxbarn.com/index.php/collection/35-tms9900/69-tep-fti990, and an
account of the repairs I did here:

I have a copy of PDOS version 2.4C, as well as a PDOS programmer's reference
manual. I am looking for additional materials: TEP and PDOS manuals, and
floppies with additional programs. I'd like to get in touch with anyone who
has some knowledge of these systems.

Kind regards,

Camiel Vanderhoeven

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