On Wed, 15 Sep 2010 11:09:54 -0500, "Mark E. Skeels" said: > Wow, that seems higher than what I would have expected. >=20 > I think (25 deg C + 40 deg C) is probably subjectively too high. I have a benchtop power supply here that has a yellow and black sticker on the case near the heatsink, "Heatsink may become hot during normal operation. Avoid contact". My air compressor has a sticker that gets to the point a bit quicker, all it says is "HOT". Bob --=20 http://www.fastmail.fm - Does exactly what it says on the tin --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .