On 12/05/2015 11:19 AM, tony duell wrote: For the time (1982), they were larger than almost any other ST506-interfaced 5.25' drives. --Chuck

Tom Gardner <t.gardner at computer.org> wrote: OK, but I'm not looking for a replacement for en Evotek harddisk, but for a CDC FINCH harddisk. These drives seem to be so rare - I would not even care about the media the disks where made of ;) And - I found nothing "compatible" so far to replace them with other harddisks.

Sorry If I didn't make myself clear, I am suggesting one never acquire an Evotek drive today other than perhaps as an historical curiosity. The Finch was a short lived 8-inch HDD that went up to 42 MB unformatted BUT according to Disk/Trend It did not use an ST506 interface but instead came with this variety of interfaces: Finch, LDI, SMD or SA1000! So your problem is likely to be finding a drive that matches the interface of yr controller card. Some possibilities ? Finch interface was available on certain CDC Wren 5?-inch models, e.g. 9415 ? SA1000 interface was available on the 8-inch Quantum Q2000 ? SMD interface was available on CDC 8-inch FSD models; e.g., 9715 ? I have no idea what LDI was BTW the ST506 interface is a copy of SA1000 interface with the major difference being a slightly higher data rate so any ST506 might actually work but the problem might be low level formatting due to the unexpected track length. Depends upon the formatting utility If u know what interface u need I can suggest models Tom -----Original Message----- From: Oliver Lehmann [mailto:lehmann at ans-netz.de] Sent: Monday, December 07, 2015 3:55 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Evotek Winchester Harddisk Tom Gardner < <mailto:t.gardner at computer.org> t.gardner at computer.org> wrote: OK, but I'm not looking for a replacement for en Evotek harddisk, but for a CDC FINCH harddisk. These drives seem to be so rare - I would not even care about the media the disks where made of ;) And - I found nothing "compatible" so far to replace them with other harddisks.