12 Feb
2016
12 Feb
'16
12:45 p.m.
Thanks for the details. Seems like the goldilocks unit, and of course one that I can't
find any documentation for. Can you confirm it can read and write 9 track formats in PE
1600 cpi?
Marc
On Feb 11, 2016, at 2:28 AM, Christian Corti <cc at
informatik.uni-stuttgart.de> wrote:
On Wed, 10 Feb 2016, CuriousMarc wrote:
It is not an E.
I would know that ;-)
Note that
Christian Corti stated that his drive is capable of 9-track
operation. That's
an E.
(Apparently that will also write 9-track PE at 1600bpi, but it will write
9-track
NRZI at 800bpi). Interesting. So what model do you think he has?
For example, from the manual
[...]
That's why I thought he had a 7970A or a
7970B (-136), that can read and
write 200, 556 and 800 NRZI. This would match all the front panel buttons we
[...]
I have a 7970B (-236) with options 127, 006, 007, 012 and 023.
More and better pictures are here now:
http://computermuseum.informatik.uni-stuttgart.de/pics/hp1000/7970/
Christian