I have a push pull output transformer which had an o/c primary winding. Luckily the break was near the surface and I was able to solder it.
I measured the DC resistance, either side of the centre tap and there's a difference of about 30 ohms. I know this doesn't mean alot, but because something caused the break I want to test it properly... but I'm not sure how
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If I apply a small AC voltage to the secondary should I get an identical voltage reading, either side of the centre tap on the primary or is there an acceptable variance?
Thanks
David