74ls20
The days you could run to the local store and pick up a 7420 are definitely over. How sad. No Kenbak programming this weekend. I ordered several 74**s online and they will probably arrive on Wednesday.
The LS versions are 0.52 a piece and so I simply had to order another $ 20 of stuff I do not really need to prevent the $8 shipping. But I was good: I didn't end up with 50,000 LEDs.
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