In drafting stage

PAL Coder - v.2 (1 PROM + TTLs)

This version is presented here courtesy of YO3GHM, who owns such a specimen built in the '90s, and who recently analyzed it and extracted its schematic. Since I never personally built it, I consider it for now "In drafting stage". Below you can see a photo of the circuit, as it was sent to me by YO3GHM.

Next, the schematic extracted, drawn and sent to me by YO3GHM.

Schematic - v.2

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The binary image of the PROM (extracted by YO3GHM) along with the schematic below, can be downloaded as a ZIP archive.