Well, the
entire large PCB containing the secondaries
is completely disconnected, removed, and set aside.
In addition to the cable carrying +ve and -ve to that
board, there are a few (two? I should have written that
down) other cables that connect the two boards. So my
only other theory is that some of what's on that board
is involved in some kind of feedback process with the
primary to step it up even higher.
_Very unlikely_, since the capacitors are only rated for 250V.
Ok, I grok this.
(b) aren't you using a good old electromagnetic
meter ?
Until I get the Fluke fixed... yup.
Are you sure?
My Alled Electronics catalog has thermistors, but only a
few in the catalog is as large as these are- about 1 inch diameter.
OK, they're special thermistors :-). They are low resistance, and they
are designed to carry heavy currents (unlike, say, the thermistors used
for temperature measurements). I've seen thermistors used like this in
PSUs before...
And apart from that, a disc ceramic capacitor, or an MOV, makes no sense
electrically here.
Like I said, I'm an analog idiot!
-dq