Datum controller 4091 for Diablo 30 on Data General Nova (3)

The Datum controller in the DG Nova 3 was a Datum 4091 optioned for the Diablo 30 drive.

Looks like acquiring one of those, or an emulator may be in order to gen up a working system.

Option sticker

Part number 4091-NDC

Datum logo on component side etch

Clipping about the Datum controllers from Computer World

Bitsavers link to Datum catalog mentioning the controller subsystem.

Data General Nova 3

A nice small system Nova 3, 2 16K core boards, and basic I/O card.

Seller had powered it on to hear the fans run, maybe not a good thing, but will see.

Nova 3 System

Card cage, CPU bottom, 2 16K core, Basic I/O

I/O connections on back

Legend on back of system (unverifed for now, other than type of board)

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Basic I/O and two 16K boards, showing etch info

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Processor board

A link to a page for the Datum 4091 controller for the Diablo 30 in this system is here.

Nova 3 CPU board

Link to page for the Nova 3 CPU in the system is here