> I'm reasonably sure using DRAMs as image sensors was pioneered by Bill Yerazunis of the Mitsubishi Electronic Research Labs in Cambridge MA in the mid to late 1990s. Amateur astrophotographers were milling the tops off RAMs (no longer remember which kind) in the early 80s. I remember reading an article about it at the time. Jack --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .