/diy/ - Do It Yourself

>>999059
The primary problem with RF transformers tends to be the leakage inductance, not capacitance.

>>999027
He doesn't seem to mean bifilar, even though the pic looks like it.

>>999021
When bifilar winding (pic related) isn't possible, on top of each other produces lower leakage inductance (=higher coupling coefficient).
Is this more important than the low leakage capacitance depends on your requirements, but like I said, it tends to be, as isolation is usually less important in RF transformers than the power transfer.