> -----Oorspronkelijk bericht----- > Van: cctalk [mailto:cctalk-boun...@classiccmp.org] Namens Al Kossow > Verzonden: vrijdag 21 oktober 2016 19:17 > Aan: General Discussion: On-Topic and Off-Topic Posts > Onderwerp: HP 7945 disk format > > for anyone wanting to try David's MFM emulator in an HP MFM 7945 disk box, > here is the format, determined from reading a Vertex V170 drive from one > > --sectors 32,0 --heads 7 --cylinders 987 --header_crc 0xffff,0x1021,16,0 -- > data_crc 0xffffffff,0x140a0445,32,5 --format > WD_1006 --sector_length 256 > > The 7945 is notoriously flaky because of the Vertex drives.
I know they are, I've three of those and just one works. But do you know the cause of failure of these drive's, except of cause the obvious shorting tantalium caps? I used hpdrive to backup the working one. -Rik
