On Fri, 11 Mar 2005, Eric Smith wrote: Positive. But it may well be a custom chip. It's on the Videotrax VCR backup interface card from Alpha Microsystems. I'm not even sure it's going to fix the problems with the card (it's very flaky and basically doesn't work) but it's a stab in the dark. The card is recognized by the software and it can somewhat read data from the tapes, but it doesn't seem to be processing the data properly, or something. I got it to work (kind of) once but the directory I pulled it wasn't the tape, because I have a second exact card (same part number on the big Motorola chip) and it works fine. There's a bunch of chips on this board (27) including a Z80, 2764, a bunch of 74-series stuff, and a few customs AM stuff (PALs, masked ROM, etc.) All but the big Motorola chip are soldered in. Anyway, never mind. I doubt I'll find one, and it's even more doubtful it'll fix whatever is wrong with this. I don't have the time or inclination to troubleshoot it (no service manuals). Here's an image of the board: http://www.siconic.com/computers/videotrax.jpg If anyone has one of these, I'll pay $50 for it. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]