[R-390] The saga cont pt 6 pleasant surprise

[Les Locklear]

Brown, Black or Gray, what Bob said!

Also, make sure the Keilballast tube isn't replaced unless you first discuss it right here!

Les Locklear
  ----- Original Message ----- 
  From: rbethman 
  To: r-390 at mailman.qth.net 
  Sent: Saturday, September 11, 2010 4:52 PM
  Subject: Re: [R-390] The saga cont pt 6 pleasant surprise


    The Brown Tubulars are the same thing as the BBODs!

  The must be replaced!

  Bob - N0DGN

  On 9/11/2010 5:27 PM, ka9egw at britewerkz.com wrote:
  > To be quite honest, I'm not sure if therer are any "Black Beauties Of Death"
  > in this radio; all the caps under the IF deck, for example are either yellow
  > AVX film caps or light green silver micas with the value stamped in plain
  > text [not the old dot code SM's], or brown tubulars.  I'm guessing it's a
  > very late IF deck being as it looks like the filter trimmer access holes on
  > the side were punched at time of manufacture and the markings by them are
  > silk screened.  There are some brown tubulars under the IF deck, bypass caps
  > mostly, but not a black one to be seen.
  >
  > Mygawd, I hope I don't have to replace every one of those brown tubular
  > jobs...that would be a hell of a job.  I figured if the filter killer C553
  > and the 8uF 'rotter' on the audio board were replaced, that got the
  > immediate 'wolf off the door'.
  >
  > Although come to think of it there are 2 other caps in the audio/limiter
  > circuit Chuck Rippel recommends shotgunning, aren't there?
  >
  > And I DO have a couple virgin octal plugs to build new filter caps on,
  > although the old ones aren't leaking and there's no hum to speak of...
  >
  > Has anyone put together a comprehensive list of all the caps in the radio
  > that should be replaced if one is going to go over-the-top?  If it's every
  > non-silver-mica/non-ceramic-disc in the radio, frankly, I dread getting into
  > it to THAT extent...but if that's what has to be done...at that point it
  > ain't fun anymore...
  >
  > 73 de KA9EGW

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