PDP11/23+ goes on

[Jerome H. Fine]

 >Fred N. van Kempen wrote:

>This works, but indeed is slow.  A little faster would be doing
>a VTserver install, but that requires fiddling with the OS to
>make it "understand" the VT: tape drive.  It would be good if
>some of the RT, RSX and RSTS folks on here could do this (easy)
>mod, and make a dist kit for the hobbyist community.  Contact
>me off-list if you're interested in doing so!
>
Jerome Fine replies:

I know you said off-list, but I think that a public
discussion of exactly what such a distribution kit
should consist of is well worth while.

I can probably help with any RT-11 distribution.

As for a bootable RT-11 kit, I suggest that if anyone is
using SIMH or E11, then the RT-11 binary distributions at:
http://www.classiccmp.org/PDP-11/RT-11/dists/
RT11DV10.ISO.zip
contains all RT-11 binary (many early ones incomplete)
distributions up to V05.03 or RT-11 and is legal to 
use with SIMH.

For a real DEC Qbus PDP-11, the RQDX3 controller and
an RX50 floppy drive might be an alternative.  RX50
bootable images can be produced on a PC using PUTR
and a HD 5 1/4" floppy drive if you still have one,
although the media MUST be the DSDD 5 1/4" media used
with 360 KByte floppy drives, not the HD 1.2 MByte
floppy drive - even though the HD floppy drive is
actually used on the PC.  When used in a BA23 box
from DEC, the IO distribution panel provides the
change from the 50 pin RQDX3 controller to the 34 pin
connector.

Sincerely yours,

Jerome Fine
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