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Help identifying ROM chips


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Hi all,

 

I found a set of ROM chips - I think they came from a Mac Plus - I vaguely remember (I was probably 5-6 years old) my Dad pulling some ROM chips out and doing some sort of upgrade to our Plus. I know he did upgrade to 2.5mb of RAM, not sure what else. I've also included a photo of the chips currently in the Plus.

 

Quick search on these part numbers didn't turn up much.

 

I recently picked up a 512k, was wondering if they are "Plus" roms, if I could upgrade it potentially.

 

large.PXL_20200820_183312656.jpg.76b07af27f0a14cd0479f9ee0fda3157.jpglarge.PXL_20200820_183328970.jpg.be23080cc4553bd2f889649d7f89eec0.jpg

 

A photo of the current chips in the Mac Plus

large.PXL_20200820_184533859.jpg.a9ecfd551d00ee3996ebd508e9ba26e5.jpg

Thanks!

Edited by erichelgeson
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