12 May
2013
12 May
'13
7:05 a.m.
I have identified the drive as a BR5A6. It is listed in the literature catalog to have a
maintenance, parts and reference manual. I wonder how much different it is that a BR5A5?
Looking over the card cage, physically anyway its the same. Since it was never installed,
the cab kit is not there and it looks like an SMD cable interface would have to be made
up. The pinouts are available in the BR5A5 manual.
________________________________
From: Al Kossow <aek at bitsavers.org>
To: cctalk at classiccmp.org
Sent: Thursday, May 9, 2013 5:49 PM
Subject: Re: Control Data 9747
On 5/9/13 8:36 AM, Al Kossow wrote:
On 5/9/13 5:06 AM, Brian Roth wrote:
I just uploaded a bunch of disk brochures and a OEM catalog. the 9747 uses a 9427 (hawk)
interface
as opposed to a TTL single-ended absolute addressing, according to the brochure for it.
They should be on the mirrors in an hour or two
http://bitsavers.org/pdf/cdc/discs/brochures/
Has anyone ever heard of this drive model? It
looks just like the 9746 in the CDC brochure.
The closest thing I see that I have on bitsavers is the BR5A5, which is using the new
disk naming
scheme CDC went to in the mid-70's