[morzh]

Well, powering it up would be too good to be true, and I had that feeling.

Before I did, I decided to check the coils, and the 1st detector filter choke, this one
   

showed open. I was hoping I did not put good contacts on the leads, but no, I did.
I took the resistor on top of it off,
   

And then took the coil off. After I looked at it, it looked like a wire was broken.
   

But, as I later found out, it was not the wire. The wire came to the leads, and there was no broken part on top. I separated both wires (one came from under the winding), cleaned it, and saw no continuity.
So I started unwinding. After about 100 turns it broke, then I found the end and took another 77 turns before it broke again.
Since I cannot operate without magnifying light, I will take it to work tomorrow to find that loose end.
I will probably have to rewind it.

177 turns at th is point, 0.08mm wire (40 AWG).
When I unwind the whole thing, I might just calculate the inductance and use an axial one instead. (AK same as most everyone show the inductances in Ohms DC resistance. I guess for service they did not need anything else).