4 Nov
2025
4 Nov
'25
5 p.m.
FWIW, those drives (IMI 5018/5020 were used in Cromemco hard disk systems,
but with a different logic board, so if you had a bad IMI interface drive
you could replace the drive with an MFM version.
In the other direction you could convert an IMI I/F drive to an MFM drive;
in fact, Cromemco sold the MFM PCB as a conversion kit.
They were also used by Corvus in their Apple computer and even the
Synclavier.
On Tue, Nov 4, 2025 at 10:43 AM jos via cctalk <cctalk(a)classiccmp.org>
wrote:
On 11/3/25 23:16, Mike Katz via cctalk wrote:
The evidence is anecdotal, I know, but I recovered the contents of 5 40
year old IMI5019 harddisks used in ETH Lilith computers : all 5 were fully
functional and had zero defects.
I used David Gesswein's MFM reader, the Lilith uses a WD1001-05 derivative
as the diskcontroller.
It has an OMTI 20C-1 MFM hard disk controller with a IMI 5018 19MB hard
disk drive in it.