Hand-wired core for ROM?

Marvin Johnston marvin at west.net
Sat Apr 11 12:13:26 CDT 2015

The PDP16 had a constants card circa 1972 or so. The constants card was 
basically cores with hand threaded wire done by the customer, and acted 
like a ROM. I don't remember the capacity, but IIRC it was about 16 bytes.

> Did the PDP14 (or any machine of that era) ever use hand-threaded (by the
> end user) core boards as ROM?
> tnx.
> g.

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