PDP-12 Restoration at the RICM

Vincent Slyngstad v.slyngstad at frontier.com
Wed May 13 18:05:40 CDT 2015

From: Mike Ross: Wednesday, May 13, 2015 3:27 PM
> "This is the DW8E-PC Omnibus Expansion Chassis.
> The boards at the top convert the Posibus signals from the PDP-12 to
> Omnibus signals on the backplane.
> The Omnibus contains an LE8-FA LP01 controller, RK8-F RK05 controller,
> and a PC8-E PC04 paper tape reader/punch controller.
> It only supports one data-break controller per Omnibus.
> If we add more flip-chips and then we could add an RX8E controller for
> the RX02 floppies."
> Or, if you *removed* the RK05 controller, could you substitute an RX8E
> without modification?

The RX8E isn't a data-break device, and I think it should "just work" 
on the pseudo-Omnibus.


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