Hi Dan/Drew, Sorry to pop into this thread (especially to show my ignorance!), but.... > I popped the case on my Futaba S3003 servo a couple of weeks ago, > and it has a little hi-speed dc motor with a multi-gear speed reducer > in there, but the pcb is all smt and hard to tell what/if the filtering > is. The motor draws ~500 mA, and these lo-V, hi-I motors tend to be > very noisy. For my Tamiya motor geartrain - similar motor to the servo > - I found that a series RC snubber across the motor contacts worked > fairly well - R = 15 - 100 ohms, C = 0.047 - 0.1 uf or so. > As I said in an earlier post I'm more of a software kind of guy. Could you describe what the arrangements are for an "RC snubber", and what the connection arrangements are with respect to the motor contacts! Also if you are feeling particularly educational any chance of explaining how the thing works (or are we well into the black art of hardware design here...)! Thanks Andy -- 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