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

Steve Kent steve.kent at att.net
Thu Sep 10 00:06:31 EDT 2009


First off, you guys are GREAT!  Thank you for welcoming me to the 
group!  I hope that I may contribute something useful some day....

I did order some parts from Fair today and they should be here in a 
couple days.

Thank you to all of you for the suggestions and info.  I really do 
appreciate it.

Best Regards & 73,
Steve Kent - KW5CQ

> 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
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