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From: rrw@naucse.cse.nau.edu (Robert Wier)
Newsgroups: sci.electronics
Subject: Re: Info on some old terminals needed
Keywords: lear-siegler, memorex, soroc
Message-ID: <2719@naucse.cse.nau.edu>
Date: 20 Oct 90 18:44:26 GMT
References: <271fe183-4c9sci.electronics@vpnet.chi.il.us>
Organization: Northern Arizona University, Flagstaff AZ
Lines: 34

In article <271fe183-4c9sci.electronics@vpnet.chi.il.us>, cgordon@vpnet.chi.il.us (Crash Gordon) writes:
> Recently I picked up some used terminals at an auction.  I have some
> questions:
> 
> Lear-Siegler ADM-3 -- This one is not configured for lowercase.  The DIP
> switches were pretty easy to figure out, so I can _send_ lowercase, but not
> receive it without additional hardware.  I need to add a couple of 2102 RAMs
> to add that extra bit to the frame buffer.  I think I also need an extension
> to the character generator ROM.  Does anyone still sell 2102s?  And where
> might I come across the ROM (or even just the format; I've got a burner and
> could cob up a lowercase font...)  (OK, so I'm bored :-)
> 
  I also have an LSI ADM3A (built from a KIT .. anybody remember 
those?).  Last summer, I was thinking about using it again after
it sat in the closet for 5 years.  However, no lower case :-(
(Unix don't like no stinkin' lower case!)  I wrote LSI a letter
inquiring about the LC rom.  They wrote back (are you ready for
this) that they'd sell me one for $50 plus shipping.  I about
fell down the stairs on that one...  You can occasionally buy
WHOLE ADM3s at about this price when property surplus has it's
disposal auctions.

I think what I might do is to have my students design the ROM
in class next semester for me (nice to have a pool of slave
labor --- JUST KIDDING!)...


 - Bob Wier

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