Something I found on the net about your other programmer. https://www.eevblog.com/forum/repair...1v-with-tl866/
I show 2732 to be 25v programming and 2732a to be 21v programming, 27c32 is 12.5v. Maybe the link above will help too. I have multiple eprom programmers and I still use my 2 PocketProgrammers and 2 PocketRoms(emulation) the most with my GM stuff :)
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