14 Mar
2018
14 Mar
'18
12:14 a.m.
On 03/13/2018 08:33 PM, Al Kossow via cctalk wrote:
There are two gzip'ed files up now of analog
digitized 9 track data under
http://bitsavers.org/projects/9track containing two files of 16 bit incrementing
data patterns blocked 512 bytes/blk and the tach signal from a Qualstar 1260 running
at 50 ips.
The data can be viewed using Salea's Logic app in simulation mode if anyone has
burning
curiosity what a 1/2" tape block looks like.
I made these as test data today for Len Shustek's 9 track readtape project
https://github.com/LenShustek/readtape
If anyone's curious, the 800 NRZI one expands to 2.2GB.
Al, did you see this patent by Kennedy:
https://patents.google.com/patent/US3947876
--Chuck