According to a datasheet[1] I found, a Siliconix DG506AR is an analogue switch in CMOS. What are some applications for this? I found a pair of them in white ceramic in my junk pile and I don't know where they came from. [1] http://www.datasheetarchive.com/pdf-datasheets/Databooks-4/Book-27459.pdf -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?