I want to raise a question regarding the adjustable inductor in SM technology.
I'm questioning my self what if the adjustable inductor must or not have a shorted circuit section. If you take a look at all Meyer's drawings of the EEC or the VIC you will clearly see that it always has a shorted section.
I thought about this today several hours and i think that this could definitely change every thing in the game.
I found little info about this, and says that whenever you have a variable inductor you should never leave open circuit turns, because dangerous voltages could be generated there and damage the insulation...
Meyer said that he wanted to restrict the current.
So what if the transformer originally had only primary and secondary windings. Than the two coils are wound in two different cores so they can be placed in different space relationship to the other as to have adjustable coupling, and having the variable inductor connected as he show with short circuited section variable.

?
I would like to try this, and will.
I have a toroidal core made of powdered iron with the same size stan said 1,5" diameter by 0,25" thickness, I don't really know if its permeability is the same so i'm trying to find the cross reference...
Anyway i will do for the sake of certainty again the transformer having 600turns secondary and 200 on the primary and the two inductors with means for adjusting the coupling and test it again....
What you think about?