11 Aug
2023
11 Aug
'23
12:06 p.m.
While probably unrelated, the mentioning of 3 rows of pins did remind me
about what I recently learned about the 1973 IBM SCAMP...
On the back side of it, it has a 3-row of 14-13-14 female pins (next to
what became a DB25 connector - did DEC come up with DB25??).
Was curious if anything ideas on what that 3-row might be for. The photo
should be here:
https://voidstar.blog/scamp-a-review-50-years-later/#jp-carousel-6400
-Steve
On Sun, Aug 6, 2023 at 4:35 PM Chuck Guzis via cctalk <cctalk(a)classiccmp.org>
wrote:
On 8/6/23 14:08, Paul Koning via cctalk wrote:
except the biggest one (DD), standard is two rows and HD is three. But DD
has three rows in the standard density and 4 rows in high density.
DC62 was used in several tape drive controllers.
--Chuck
> On Aug 4, 2023, at 10:10 PM, Jonathan Chapman via cctalk <
cctalk(a)classiccmp.org> wrote:
>
>> Anyone seen those before, and is it actually SCSI, or is it something
else?
>
> Common on old Sun SCSI stuff, it's a DD-50. Could be something else,
but they were indeed used for SCSI termination.
Thanks,
Jonathan
The D-sub shells come in standard and high density flavors. For all