The weird stuff I keep finding: 19 bit core memory?

[Pontus Pihlgren]

On Tue, Oct 20, 2020 at 11:26:22PM -0400, Chris Zach via cctalk wrote:
> > Or maybe a PDP-15?  18 bits plus parity.
> 
> Possible, did the pdp15 use that type of board?
> 

I have seen PDP-15 core memory and it is not that format. It looks like 
the memory modules from a PDP-8/I or -8/L

Admittedly, the PDP-15/XVM might have had something else.. not sure what 
model the core I saw came from.

/P