[R-390] Help getting unstuck!

Craig C. Heaton wd8kdg at worldnet.att.net
Fri Apr 1 13:35:52 EST 2005


Good Morning to All,

Just finished putting a Motorola R-390A back together. Had to replace many
evil out-of-spec and leaky capacitors. The good news is no magic smoke
escaped while plugging the receiver into a source of electrons. Thought it
might be a good idea to realign the receiver, it was receiving slightly
before my attempts at restoration.

Now the sticky question. Can't seem to get the top slug in T501 to move. All
of the other slugs will move. This transformer has a cover with a hole
punched in the top center. Looks like a little rust between the slug and
coil form. I doubt I'm to first to tackle this sort of challenge. Anyone
been here before? What sort of fixes for a stuck tuning slug? Of course, if
it never moves again or I break it, does anyone have a spare?

Seem to remember hearing in the Navy, "If its tight, its right". This one is
real tight, need to make it wrong.

Tnx,
    Craig



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