[R-390] Some more R-390A questions

[windy10605@juno.com]

More questions for the experts.

Since this unit has not been worked on by anyone, except me
replacing the one bad electrolytic, missing jumpers, one bad 
tube, lubricating the gear train and slug racks, etc, some 
improvement has been seen .....but it's not nearly enough.

So far, the unit receives the Broadcast band but the other
bands are very weak. Last night the GFI tripped ....the AC filter
on the unit has a problem so it will be replaced. I assume that, 
as with any 35 year old radio, all the tubular capacitors need
to be replaced, maybe high value resistors checked, etc. What
other things do I need to go through ? Or should I just replace 
the "definitely bad parts". I seen several pieces of military/
commercial (HP) gear with the sealed tubulars which were just 
fine after 40 years but not so for the rectangular paper capacitors 
in URM/25s or any other tubular capacitor which has a broken 
seal around the leads.  

What a marvel of Mechanical Engineering expertise.
  
73  Kees K5BCQ