lf of Al Kossow
> via cctalk
> Sent: Thursday, May 14, 2020 9:54 AM
> To: cctalk@classiccmp.org
> Subject: Re: ISO: Diablo 30 heads
>
> On 5/13/20 6:28 PM, Jay Jaeger via cctalk wrote:
>
> > Carl, feel free to contact me off list.
>
> Has anyone heard anything f
I just emailed him an hour ago and he replied. I suspect he is fine.
Dwight
From: cctalk on behalf of Al Kossow via cctalk
Sent: Thursday, May 14, 2020 9:54 AM
To: cctalk@classiccmp.org
Subject: Re: ISO: Diablo 30 heads
On 5/13/20 6:28 PM, Jay Jaeger via
On 5/13/20 6:28 PM, Jay Jaeger via cctalk wrote:
Carl, feel free to contact me off list.
Has anyone heard anything from Carl?
I'm a bit concerned since there have been no updates on his 1130 page for a
while.
On 05/14/2020 09:43 AM, dwight via cctalk wrote:
I wonder if a high density head could be used on a low density machine. I'd
think the main difference would be track width. If the signal levels were
similar it might work.
A high density head should be able to READ a pre-written
low-density
On 5/14/20 7:43 AM, dwight via cctalk wrote:
I wonder if a high density head could be used on a low density machine. I'd
think the main difference would be track width.
It wouldn't work well at all for interchange with a real IBM 1130 disk drive,
which would be what Carl would need them for
:28 PM
To: cctalk@classiccmp.org
Subject: Re: ISO: Diablo 30 heads
On 5/12/2020 9:26 AM, Al Kossow via cctalk wrote:
> On 5/12/20 6:10 AM, Jay Jaeger via cctalk wrote:
>
>> I don't remember now if these parts I have were from drives originally
>> on a DEC or DG system.
>
&
On 5/12/2020 9:26 AM, Al Kossow via cctalk wrote:
> On 5/12/20 6:10 AM, Jay Jaeger via cctalk wrote:
>
>> I don't remember now if these parts I have were from drives originally
>> on a DEC or DG system.
>
> The easy way to tell is the low density heads have metal instead of
> ceramic disks.
>
>
i've uploaded what the high density heads look like to
http://bitsavers.org/pdf/diablo/photos/heads
I have Diablo 30 or 31 and 2 RK11-C backplanes here. If anyone here is
interested, please contact me off list.
On 5/12/20 6:10 AM, Jay Jaeger via cctalk wrote:
I don't remember now if these parts I have were from drives originally
on a DEC or DG system.
The easy way to tell is the low density heads have metal instead of ceramic
disks.
If anyone has the older metal style, Carl Claunch is trying to
On 5/11/2020 11:15 PM, Josh Dersch via cctalk wrote:
> Hi all --
>
> I'm restoring a Xerox Alto and I started going over the system's Diablo 30
> drive. The heads are in bad shape; the bottom one is actually missing both
> parts of the erase poles (so the black portion of the head no longer
On 5/11/2020 9:15 PM, Josh Dersch via cctalk wrote:
Hi all --
I'm restoring a Xerox Alto and I started going over the system's Diablo 30
drive. The heads are in bad shape; the bottom one is actually missing both
parts of the erase poles (so the black portion of the head no longer makes
a
Hi all --
I'm restoring a Xerox Alto and I started going over the system's Diablo 30
drive. The heads are in bad shape; the bottom one is actually missing both
parts of the erase poles (so the black portion of the head no longer makes
a "t", it's just a black line). This means the head (in
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