[R-390] Parts Needed, new R-390A owner & questions...

[Steve Kent]

Hello All:

I am new to the R-390A world and have recently acquired a SW R-390A s/n 
1911. I have wanted one of these receivers since I was a young boy, as 
my dad had one in the garage and I would tune around for hours.  I 
always wanted one, and now that I have the space, I am working towards 
making this one functional.

Anyway, I am looking for a few things. Here goes:

L505 12MH choke
T201 slug
Z213 center slug
Z205 rear slug
"IF Out" coaxial jumper

I wanted to be very cautious before powering it on, knowing that there 
are some caps with bad reputations.  So I set out to give it a good once 
over and take a close look around.  It's a good thing I did.  Upon  
removing the IF deck I discovered a blackened area with L505 fried and 
R508 blown up. C553 tests OK but I am replacing it; I expected it to be 
shorted.

Now I hope that the mechanical filters aren't toast. What is the best 
way to test them? Take them out of circuit and measure the coil 
resistance and measure each terminal to ground? Any ideas what typical 
values would be?

Apologies for so many questions, but I am eager to get this beast working!

Best Regards & 73,
Steve - KW5CQ
Houston, TX