Good afternoon. I saw this message in internet. " Hi Jay, I am restoring an Altair computer and plan to use paper tapes. I have a Facit N4000 and operating manual. I was wondering if you have the service manual? Steve www.tc.umn.edu/~drsteve " I have one Facit n4000, and I need manuals? Operating, service or other if you have. Could you send me one?