Ok, so I was at the Computer History Museum again today and got a chance to check out the Unidisk in more detail. First of all, it might be a very late model prototype as it requires a kludgy external box for power. Donated along with the drive was a box of Apple interfaces. There is definitely an Apple /// Uni/Duo-disk controller. Therewas also a funky Apple ][ riser card. There were also a couple extra analog boards. One was a spare Unidisk analog board, and there were two Lolly Disk analog boards. What's a Lolly disk? Also donated were about 10 engineering drawings of the Unidisk, Duodisk, as well as the Disk ][ controller, Disk ][ analog board, and some other stuff. Definitely an interesting piece of hardware. Eric, ask the next time you are there and you should be able to get someone's permission to check out the drive. It's in the accessioning room, next in queue to be accessioned. -- 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 ]