On Sun, 28 Sep 2008 19:40:35 -0500, Steve put finger to
keyboard and composed:

What you
said about the center tap makes sense, that would explain everything,
but it measures fine, .9 ohms between either winding & center, 1.8
total.

Could it be that the transformer's centre tap pin has a dry solder
joint that closes up when you probe it? I always reflow the solder at
coils and transformers for this reason.

- Franc Zabkar
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