[R-390] Cosmos PTO, spring-loaded linearizing core?

[Tim Shoppa]

> OK, no more guesses.

Your guesses have been pretty good and quite helpful in fact :-).

> When you say there is a threaded hole in the base, does that
> mean that the red/black rod is threaded on the outside? It
> looks smooth in the pictures. If it's smooth, it ought to slide.

That red/black rod in the picture isn't really present in mine.

Mine has a black plastic nub sticking (friction fit but pretty tight!)
into the bottom of the inductor base.

The threaded rod goes into the threaded hole into the base, and
has the slug on the other end at about the right height to stick into
the winding area. If I screw it in far enough from the top, it
eventually
bumps into the black nub. Because I'm turning the slug at the top
I stop turning at that point (rather not break that slug!)

My belief (unconfirmed by fact yet) is that the threaded hole is
part of a cylindrical "piston" that should slide up and down the
base body. The bottom of the metallic piston has the black nub
for riding the ring. And that the piston is seized in the body.

Tim.