Simulated disk drive for RT-11?

Pete Turnbull pete at
Tue Jun 7 02:11:42 CDT 2005

On Jun 6 2005, 22:46, Allison wrote:

> Note there were differenet backplanes used in the BA23 those
> that were compatable with uVAX-1, those that were uVAX-II
> and the microPDP-11. Use the wrong one with the desired CPU
> and bad results happen.

I've never seen more than one type of backplane in a BA23, and only one
is listed in my manuals: H9278-A.  It's compatible with all of
microPDP-11, uVAX-I and uVAX-II without so much as a jumper change.
 Are you thinking of something else?

Pete						Peter Turnbull
						Network Manager
						University of York

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