Going through the attic and found an old industrial PC with four Quatech boards (lower board in <http://www.iowaind.com/Manufacturing-Equipment-/Drills-/No-Warranty-/Quatech-arbitrary-waveform-generator-board-wsb-100-A12M.asp>). These are 16-bit, ISA cards. If anyone is interested, they are available for $20 plus shipping from 85704. I will include a 60MB IDE drive with software that was used to display data along with control the cards. ->CRC