I saw one of those at the UW-Madison surplus sale a few weeks ago, at a similar price, but passed it up. It looked like an A/D box of some kind, I too saw the apple logo and wondered if it wasn't for the Apple II era - Isaac Newton, get it? I definitely saw A/D converter chips in there, maybe they were on the expansion cards. No CPU necessary, it could be driven by TTL logic if it was just spitting data. - John Jefferson Computer Museum <http://www.threedee.com/jcm>