Dec-10 Day announcement from Living Computers: Museum + Labs

Rob Jarratt robert.jarratt at
Sun Dec 10 03:31:58 CST 2017

> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at] On Behalf Of Rich
> Alderson via cctalk
> Sent: 10 December 2017 08:22
> To: 'General Discussion: On-Topic and Off-Topic Posts'
> <cctalk at>
> Subject: Dec-10 Day announcement from Living Computers: Museum + Labs
> Happy DEC-10 Day!
> It is my honor to announce that we at Living Computers: Museum + Labs are
> releasing to the computing community our Massbus Disk Emulator and all the
> associated software.  This device connects via Massbus cables to the RH10
> RH20 interfaces on KI-10 and KL-10 systems, to the RH11 interface on KS-10
> and small PDP-11 systems (including the front end 11/40 on the KL-10), and
> the RH70 on the PDP-11/70.  The MDE provides up to 8 emulated RP06 or RP07
> disks (represented by disk files in the format used by the SimH emulation
> these systems).
> We expect that it will also work with the RH780 on the VAX-11/780 and
> VAX-11/785 although we have not yet tested it in this configuration.
> The original MDE was designed by Keith Perez in 2005, and emulated up to
> RP06 drives connected to a KL-10.  The current generation was a redesign
> Bruce Sherry in conjunction with the restoration of our
> DECsystem-1070 in 2012, and initially provided eight RP06 drives on the
> It has undergone continual development, with associated software created
> us by Bob Armstrong, and is now being opened up for the use of the
> communities.
> To this end, we have placed the design files for the hardware and the
> files for the software to interface with it, along with our library of
> Peripheral Emulator routines, on public access repositories at Github.
The URLs
> for these repositories are
> These are released under a very liberal license which will allow for free
use of
> the MDE by any interested party.
> Happy Dec-10 Day!
>                                                                 Rich
> Richard Alderson, Sr. Systems Engineer
> Living Computers: Museum + Labs
> 2245 1st Avenue S
> Seattle, WA 98134
> Cell: (206) 465-2916
> Desk: (206) 342-2239

All I need now is a PDP-10....


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