Reading ROMs

Eric Smith spacewar at
Sun Sep 6 19:22:13 CDT 2015

On Sun, Sep 6, 2015 at 5:38 PM, Marc Verdiell <marc.verdiell at> wrote:
> It just dawned onto me that these were "write once" PROMs,
> I guess none of the modern ebay Chinese ones would do?

I'd suspect not, since bipolar PROMs are long obsolte.

> where can you get the blanks?

The usual surplus IC sources.

> Any modern equivalents here too?

The only ones still being made are military, for really big bucks.

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