Need data on this Syquest drive

From: Don Maslin <donm_at_cts.com>
Date: Thu Nov 19 18:53:30 1998

On Thu, 19 Nov 1998, Christian Fandt wrote:

> Hi folks,
>
> Recently I posted that my MicroPDP-11 is up and running. A question I had
> still is not answered and I was hoping somebody here could help.
>
> The machine has a Syquest cartridge drive. It is a model SQ 312RD.
>
> I tried searching the web for info on this model but could only find a
> reference to it having 2 heads and 615 cylinders. This figures to
> 10,705,920 bytes capacity assuming 17 sectors per cyl and 512 bytes per
> sector? 10 mb cartridge size then, correct?
>
> I have no other info on Syquest except they are now dead (their websites
> still turn up in search engines but there's no response.) Anybody fill me
> in on the specs, etc?
>
> Cartridges available for the SQ 312RD????

You probably have about as much information on those early Syquests as
anyone now. I have an SQ 306R (5mb) on the shelf here that is in "I work
when it suits me" condition. The major difference in it is that it uses
306 cylinders.

As for the cartridges, I have never been able to visually tell the 5mb
from the 10mb ones. Those that I have seen are not marked as to capacity.
Getting them is probably mostly a matter of luck.

snip
                                                 - don
Received on Thu Nov 19 1998 - 18:53:30 GMT