OK, for those that were not turned away by the subject line... I have a small quantity of Western Electric 205B1 2400 baud modems available. These were designed in 1961 for use mainly on encrypted voice circuits, and were state of the art for at least a few years. They are 8U open rack (23 inch) chassis with a bunch of cards with typical "alien" looking WE transistors and discrete parts. My phone geek friend says they probably are not RS-232, so don't get any ideas. These specific units belonged to NASA, and were installed at Goddard Space Flight Center. I am not sure if they work - I am waiting for my phone geek friend to play with his. Maybe I should send him two... Any interest? Make offers. William Donzelli aw288(a)osfn.org