[R-390] R-390(nonA) IF Cans

[John KA1XC]

Hi David,
yes to both of your questions.

It's fairly common to see IF transformers that have been over tightened
somewhere along the line, those deep draw cans ( a piece of art in
themselves) cannot support a lot of force without starting to buckle along
the edge.

The tops of the cans in my 390 were buckled pretty good, but they
straightened out easily by tapping out the dents with a wooden dowel against
the workbench. The shields cans are just that, only shields; the transformer
frame itself is secured from the inside of the chassis.

If the mounting hole are seem out of alignment after straightening out the
cans you can use a small round file to enlarge the hole a little.

John


----- Original Message -----
From: "David P. Goncalves" <dpg@coe.neu.edu>
To: <r-390@mailman.qth.net>
Sent: Saturday, March 29, 2003 9:29 AM
Subject: [R-390] R-390(nonA) IF Cans


>
> Hello All,
>
>  After a long wait, I have recieved my first (may not be the last) R-390.
> The modules have been handled roughly, and there are quite a few
> scratches, gouges and dents. Nothing too bad, just looks ugly.
>
>  Now for my question: Besides the dents, I'm noticing that the tops of the
> IF cans are all 'pushed in', andf that the can nuts are tightened 'till
> the sides bulged out. Is this normal, or was it a bad day in the shop for
> this radio? Is there any harm in banging out the dents?
>
>  Thanks,
>
>
> David P. Goncalves, N1XZB
>
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