Vintage Synth Repair

Hi.  Please help!

Still working on getting rid of noises on my Moog
Prodigy.  Working under the assumption that it is a
grounding problem I began testing for continuity at
various points on the board.  I found that at some
points there was clear continuity to ground, and at
some other points I would get only a short beep. 
Actually, it's a very consistent, short, once-only
beep.  So from there I traced this occurance back to
these two components (see attached photo).  They
both
have three pins.  I found that one pin is a clear
ground and the other two would have that beep.

So, I have two questions.  What are these components
(labeled with a "u" but they don't look like op-amps
to me) and is this behavior normal?

Thank you in advance.
-Mark

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> ATTACHMENT part 2 image/pjpeg name=Mvc-003f.jpg



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