Eisermann, Phil [Ridg/CO] said: > Re-checked amplifier. 5.6V :( As soon as I remove the emulator, the > output voltage is again correct. Now that is really weird. Can't be the inamp latching up or it would go higher than 5.6 with the emulator removed. Tough one you have there. Time for an opinion from someone else. Cheerful regards, Bob -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics