>That was my point, Tom. It's always a good idea to get the exact >replacement part, if it's available. Apparently, the 7407 is not as >_widely_ available as many parts. > >-michael > > Email: mjmahon@aol.com I have a few of the 7407N chips left over from my Apple repair days back in the 80's. If the original poster needs a couple, just pay for shipping. Raymond