23 Jul
2011
23 Jul
'11
12:41 a.m.
On Fri, 22 Jul 2011 16:55:27 -0600
Richard <legalize at xmission.com> wrote:
The nameplate reads just "4012".
First I have to clean everything. Then I'll have a look at the 4012.
The phosphor in the tube is damaged at the right edge. To bring up
the /34 will be interrestig, especially the RK05. There is a medium
still mounted. Everything was stored in a warm, dry but very dusty
basement for about 20 years. RK05 + dust = ! good.
The tape drive was much biger and
havier then the hardcopy unit.
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. 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.
Lower case letters as a feature...
:-)
I have a 4006 (?) in storage. It is upper case only and thats quite
anoying.
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 :-). 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.
Hmm. That would be in time for the next
VCF-Europa...
--
\end{Jochen}
\ref{http://www.unixag-kl.fh-kl.de/~jkunz/}