Re: I found it! A very sorry looking MK14.
Well, the good(?) news is that only one of two is duff, so if you can source a single replacement Nat Semi DM74S571 and get it sent to me I will programme it for you. That will probably be cheaper for you than buying a pre-programmed pair. Just try to avoid any which are suspiciously cheap, as they may well already be programmed.
I've also had a response from the German seller of the AM9111s, they are sending me a replacement for the one dud IC out of the four I received.
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