At 09:21 PM 2/9/2004 -0600, you wrote: I don't have a Fluke 8100 anymore, but at one point I did. Just a warning Be very careful working inside that meter. Fluke was fairly casual about the routing of the high voltage traces. Well, probably not in terms of performance - it's a great meter - but certainly in terms of safety and reliability. I had several of those meters and at one point a solder splash hit just the wrong spot on the circuit when the meter was open, and the next time it was powered up it pumped the high Nixie voltage into the low voltage circuit. It let out a lot of smoke. The high voltage lines (at least one of them) are routed right through the board unprotected and uninsulated. Scott