On 8/7/03 10:59, "Mike Singer" wrote: >> If it had two pins it would be called a photo diode... > > 2-pin phototransistors were more common than 3-pin in my > experience. I concur with that...I've only ever dealt with the 2-pin variety before, which is why the 3-pin variety kinda had me wondering. -marc -------------------------------------------------- Marc Nicholas Geekythings Inc. C/416.543.4896 UNIX, Database, Security and Networking Consulting -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.