Recognizing shunts in NSTs

I've got a question for all of you out there who are experienced in
rebuilding NSTs. I've just unpotted a couple of xfmrs, and I haven't
been able to find the shunts so far. If the wise ones out there could
tell me what they can about the architecture of an NST, I'd really
appreciate it.

BTW, on one of them, I managed to destroy one of the secondaries, so if
it has to be ripped off, that would be OK.

                -Doug Brunner