Originally Posted by
skimask
That's exactly what I was talking about. If you wanted to get rid of the 7402 (?), you could easily do the same thing with a couple of 2N2222's.
I know how to use a transistor as an AND gate, but not sure how to do an OR. I need it to be OR because the output should be high when that output is not selected.
I've been trying to work out if I want TTL or CMOS for my OR gates. Ive been looking at the data sheets, but cant really see which would be better for this application.
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