M688 Flip Chip Unibus Power Fail Driver Modules

[steven at malikoff.com]

> On Wed, Jan 6, 2021 at 5:24 PM Noel Chiappa via cctalk
> <cctalk at classiccmp.org> wrote:
>> Anyone need/want a couple of these? Someone has a group of 5 for sale on eBait
>> (#184317666245), and I want a couple, but not _5_. The seller didn't respond
>> to a request to split up the lot, so I'd like to go in with a couple of other
>> people on the. Any takers?
>
> I'm a "maybe"... what are these found in? (I have quite a bit of early
> 70s PDP-11 gear).
>
> -ethan

It's not used in the PDP-11/15, that I can tell. I checked the 11/15 module utilisation
diagram and it specifies the KP11-A M7217 and M7218 Power Fail and Restart modules, which
my FOX2 does have installed.

Steve.