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From: cgordon@vpnet.chi.il.us (Crash Gordon)
Newsgroups: sci.electronics
Subject: Info on some old terminals needed
Keywords: lear-siegler, memorex, soroc
Message-ID: <271fe183-4c9sci.electronics@vpnet.chi.il.us>
Date: 20 Oct 90 05:55:03 GMT
Lines: 37


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 :-)

Lear-Siegler ADM-20 -- Seems to work a lot like a DEC VT-xxx.  I'm guessing
VT-52.  Any clue as to what all the setup bits are?  I don't have a DEC VT
manual available, but they're probably the same.

Soroc Technology IQ-120 -- This unit has a High-voltage problem, but is
probably fixable.  What sort of emulations are in this thing?  There's a
"Main" port, an "Aux" port, and a place for a "Printer" port.  What's the
Aux for?  How tough (or useful) would it be to try and turn up the printer
port?

Memorex 2051 Model 11 -- This one is cabled up for a Twinax system, and
seems to have a lot more intelligence than your average terminal.  I've
never messed with Twinax anything, so I'm really in the dark here.  It's fun
to watch in "Test" mode, but that's not real useful.

Of course "Real Cheap" sources for manuals on these animals would be nice. 
I know the Lears  (particularly the ADM-3) are/were real workhorses in the
industry, so there are probably quite a few sources for info.  I suppose if
Lear-Siegler is still around that would be my best bet.  Are they?

Thanks for your time...

-----------------------------------------------------
Gordon S. Hlavenka            cgordon@vpnet.chi.il.us
Crash Electronics, Inc.       "A Westmont Tradition
Westmont, IL                   for Over a Quarter!"