DEC H207 Core Memory Boards

[Brent Hilpert]

Ethan Dicks wrote:
> 
> On 7/10/09, Rick Bensene <rickb at bensene.com> wrote:
> >  Give the 16-bit array size, I assume that it may have been used in a
> >  PDP-11, but I suppose (with four wasted bits) it could have been used in
> >  some form of PDP-8 system.
> 
> Probably not.  There are 4Kx12 planes for the PDP-8 (I don't know the
> number off the top of my head) and it's not the same as what was used
> in the PDP-11.  Cores cost too much to "waste" 25% of them.

While the use of the H207 has apparently been determined, out of curiousity was
there ever any ECC core memory for the PDP-8?, it might have have had a width
of 16 or 17 bits.