[vcf-midatlantic] help dumping rom of rare coin-op arcade game

Andrew Molloy awmolloy at landsnail.com
Sat Mar 18 23:55:53 EDT 2017

Thanks for all the advice and offers of assistance. I will let you know how
this turns out.


On Fri, Mar 17, 2017 at 2:48 PM, Herb Johnson via vcf-midatlantic <
vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:

>  The CPU is a Signetics 2650 and the ROM
>> looks to be a Signetics N82S115N (it's the only socketed chip on the board
>> that I can see).
> Google tells me 82S115 is a 512 X 8 TTL bipolar PROM, by finding
> datasheets. Most ordinary and old PROM programmers don't support that whole
> class of PROMs to program. But reading it is a different matter.
> http://www.retrotechnology.com/restore/fuse_bipolar_prom.html
> Build a reader. Or fake a common 5V EPROM and read THAT. It's doable.
> You're welcome.
> Herb
> --
> Herbert R. Johnson, New Jersey in the USA
> http://www.retrotechnology.com OR .net

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