I appreciate the replies so far, except that I'm looking for this component for historical reasons. I agree that nowadays there are much better options for correcting the problem. I'd like to assemble a "replica" of the original kit. It would never actually be used. I guess that makes me a little bit of a chip collector (arg!), something I dislike. I like everything in my collection to work. No insects stuck on pins. But, in this one case (actually, I can think of a couple more) I'll make an exception so that I can point to it and tell people "this is how you fixed bugs back in the day." I could just take j-random-dip-package and paint "94618" on it I suppose...