I've looked all over, but it seems I cannot find the specific RAM for an old Macintosh Plus I am upgrading. I am trying to get it up to 4MB of RAM, which must be installed in pairs, as four 1MB units. It currently has 1MB of ram (Four 256k units) From research, I know it needs 30-Pin SIMMs at 150ns or faster. After looking, it seems that all places i looked had less than 150ns!! So, does anybody know where to get this specific RAM type at? (ive checked ebay, other forums, and a range of memory manufacturers, but..nuthin') I'm not in any rush or extreme demand, but over the span of the remaining year or so, I'd like to get this thing running at it's maximum power. Thanks for your help.