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Firmware and System ROMs
Dec 20, 2017 Gould

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These are the EPROMs for the Gould PG-4064 Digital Pattern Generator. When I got mine, only one of the stickers was still in place, and that only barely. All the others were in the bottom of the case due to dried out glue, so I don't know which label is which. In any case, I have marked the locations of the EPROMs on the image. U32 is a AMD AM2764DC. U32 and U38 are Fujistu MBM27128-25. U43 and U50 are NEC D27256D. I've given you both the BIN and Intel HEX formats, so you can choose either one...
Topics: Gould, PG4064, PG-4064, digital pattern generator, rom, firmware