Glad I could help. Just out of curiousity, does the list from Dave include prom part numbers?I had been working on the assumption that you could only search for the broadcast code, such as BYYC. I didn't realize you could search by the prom number.
It's not too hard to add a ZIF socket to the memcal and switch to a flash chip. A couple of 27SF512's work well to take the load off the eprom. And you can attach an emulator fairly easily as well.
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