Mystery board and drives

From: CLASSICCMP_at_trailing-edge.com <(CLASSICCMP_at_trailing-edge.com)>
Date: Sun May 9 07:31:45 1999

>1) A quad-height Qbus?? (Unibus?) Emulex TU03. I first thought this
>might be a SCSI controller, but a closer look indicates that it probably
>isn't. This board is populated with mostly 14 and 16 pin DIPs, a couple
>PALs, 40 pin DIPs, and 28 pin PROMs. My next guess would be a tape
>drive interface.....

This is a TC13. A Unibus Pertec-Formatted tape controller,
emulating TS11/TU80.

>2) A couple of Seagate hard drives, complete with a power supply on a
>mounting channel. These are labelled: Equipment No.: PA4B2A, and on the
>drive itself: 975002-001. What are these?? I'm pretty sure there not
>SCSI, but other than that, I'm puzzled....

What sort of connector? If a 60-pin and a 26-pin, then they're SMD.

The "9750" part of the part number sounds like a CDC part number -
Seagate bought out CDC's disk drive business many years ago.

Tim.
Received on Sun May 09 1999 - 07:31:45 BST