To the forum: Thanks again for the help in the 4-20mA circuit. What I have found at our company is that someone dug up an archaic copy of a circuit that has been used around here for quite some time. Just shows that there is more than one way to skin a cat. Since other forum members were interested in the 4-20mA circuit that was posted earlier by Mr. Brent Brown, I thought that I would send in the one that we had. Sorry for the bandwidth expense. :-) Regards, Kelly Schauf Content-Type: IMAGE/JPEG; name="4to20.jpg" Content-ID: Content-Description: Attachment converted: wonderland:4to20.jpg (JPEG/JVWR) (0001086A)