In article <20110722221557.ba3f8f2a.jkunz at unixag-kl.fh-kl.de>,
Jochen Kunz <jkunz at unixag-kl.fh-kl.de> writes:
On Fri, 22 Jul 2011 11:36:36 -0600
Richard <legalize at xmission.com> wrote:
Niiiice. The 4012 is the 4010 with lower case
and the thumbwheels for
graphic input cursor positioning.
I roughly know what the 4012 is, but I still
have to learn all the
details. BTW: I don't have the thumbwheels. There is a joystick on my
unit.
Interesting! Tektronix seems to like to make lots of little variants
of their products. I bet you have a 4012-<something> on the nameplate
if it came from the factory that way. On the 4010, 4010-1 indicated
that the terminal had the printer support; a small amplifier board in
the tube section is needed to properly support the printer interface.
If you look at the 1972 catalog, pg. 274 you see a picture of the
newly introduced 4012 and it clearly has the thumbwheels like the 4010.
The 4012's big change from the 4010 is that it supported all 96 ASCII
characters, while the 4010 only did upper case.
You can see it in this PDF, pg. 94, 95
<http://www.xmission.com/~legalize/vintage/docs/tektronix/Tektronix_Terminals_1969-1993.pdf>
The hardcopy
unit isn't of much use
as the paper is unobtainium and has a limited shelf life anyway.
I know. But the
hardcopy unit without the terminal is even more useless.
I.e. it would have been trashed if I hadn't taken it with the terminal.
So I took both.
I was wondering if the space might have been better spent taking the
tape drive, but its a moot point now anyway :-).
I've got
an Arduino project in the works to create a compatible
replacement for the hardcopy unit though.
Oh, thats really interresting. Now I
remember that you wrote about that
project on this mailing list. I do some AVR hacking myself. Please drop
me a note when you finished this.
I'd like to have my arduino housed with a modern printer inside the
original enclosure so that it simulated the original device :-).
My goal is to finish that hardware project this year; I now have
enough equipment to start testing my design to make sure it can
produce the signals within spec.
--
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<http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
Legalize Adulthood! <http://legalizeadulthood.wordpress.com>