5FP7 project starting with the focusing coil.

[ppppenguin]

Inductance measurements are notoriously tricky but let's take those figures at face value. Coils are 63mH. When measured from the primary of the transformer you see 0.11mH. The ratio is about 570. Take the squre root and the transformer ratio should be about 24:1. Is that correct? That also implies the voltage on the primary of the transformer should be 24x higher than that on the secondary.

The inductances of the transformer windings without the scan coils connected are not relevant.