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 > <c...@informatik.uni-stuttgart.de> wrote: > > On Wed, 10 Feb 2016, CuriousMarc wrote: >>> Note that Christian Corti stated that his drive is capable of 9-track >> operation. That's an E. > > It is not an E. > >>> (Apparently that will also write 9-track PE at 1600bpi, but it will write >> 9-track NRZI at 800bpi). > > I would know that ;-) > >> 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
