[R-390] Finally!!!

[blw]

Some people like getting into the upper modules often, so maybe not
replacing all of the problem capacitors is okay for them. I like tinkering
with some things too. Still, there is that risk involved if you don't. Time
and again someone on the list is testing the brown beauties and most of them
are out of spec. I agree with being safe and replacing them.  Another
advantage in replacing the paper electrolytics and black/brown beauties is
that you will be reheating those ancient solder points. If you have the MFP
coated modules, this is a good time to make sure the grounding points are
scraped clean. This has been a source of problems too. Plus, Scott has a
good point where you would be doing the radio a lot of good in terms of
performance. Tubes are great, but old caps ain't.

Dave in Birmingham also sells recap kits. I bought one a while back and it
is a good deal. It is a good deal on prices, and I saved hours of time
looking up parts. He sends them separated and labeled in bags. No fuss, no
muss.


Barry Williams


> 
>> Thanks to all for the suggestions,
>> 
>> I've been going over the radio and alignment procedures.  Since it is very
>> clean, I will only replace the Rippel capacitors.  If some voltages are
> out
>> of spec. I will check and replace components as necessary.   I don't
> believe
>> in wholesale component replacement.
> 
> Maybe a mistake.  There is a capacitor that, if it fails, will take out your
> mechanical filters.  And it HAS happened before!!!!   I would replace
> this one no matter what. I would
> do a random check for leakage in the capacitors, especially if you
> have "brown beauties".  I tested all of mine as I replaced them on a
> Sencore LC-73 analyzer and they all had BAD leakage.  Nothing wrong
> with spending time with each module and checking all components.  If in
> doubt, replace it.  We own these radios to use them right? why not go the
> extra step to make it perform like the day it came out of the box?  You
> certainly
> are not decreasing the value of the radio, but increasing your listening
> pleasure.
> I highly recommend Walter Wilson's rebuild kit as it replaces all
> problematic
> components and even includes a 10 turn carrier pot and a CL-80 inrush
> current limiter.
> 
> 
> Scott