It's probably an 8080BT, but that's just a guess at this point. The Altair I "rescued" with tons of help from Dwight and others from this list was also a garage piece for a long time. I brought it up piece by piece as was suggested in one of the previous replies. I didn't separate card logic from the regulators on each card, but I did power each card individually to see what might go pop. I got lucky with capacitors but some of the front panel TTL was bad and needed repair (Dwight and his 'scope saved my ignorant butt on that!) With the machine running I realized that 6 of 7 RAM cards I had were either completely dead or unreliable. I don't know if that was just dumb luck or a result of rough handling before I got the machine but it was shipped wrapped in clear bubble wrap then embedded in Styrofoam peanuts and the cards were left installed in the machine resulting in broken card guides and split slots. If you do decide to keep this machine expect equal portions of fun and frustration, which I think pretty well defines this hobby. Erik S. Klein -----Original Message----- From: cctalk-admin(a)classiccmp.org [mailto:cctalk-admin@classiccmp.org] On Behalf Of Ron Hudson Sent: Tuesday, September 24, 2002 10:33 PM To: ClassicCmp(a)vintage-computer.com; Classic Computers Subject: Re: Altair-what do I do first On Tuesday 24 September 2002 09:26 pm, you wrote: yes, seriously, my eyesight is not much good for soldering, or chip reading. Everyone - Please remember this is not the altair you think of with the blinky lights and switches, it does have a video out (some sort of terminal board) and floppy drives. It has been sitting in a garage for some time, and it's only an offer so far, not delivered.