5 Oct
2005
5 Oct
'05
4:15 p.m.
Hi,
I have a control panel from a Univac mainframe that I hope to re-animate
someday. Unfortunately I know very little about Univac mainframes.
First I'll go for broke: does anybody recognize this unit and have
schematics for it?
http://www.saccade.com/writing/projects/UnivacPanel/UnivacPanel.html
No? OK, time for plan B, reverse engineering it. Most of the chips on the
panel are straightforward 74xxx TTL, however, a number of them appear to
have a seven digit part number instead of a regular 74xxx stamp. Is there a
translation guide between this seven digit number and regular 74xxx
numbers? Most of the 74xxx parts on the board also have these seven digit
numbers.
Any tips on how to guess the actual function would be most appreciated.
Thanks,
John Peterson
www.saccade.com