[R-390] MFP

Mon, 22 Mar 2004 09:00:15 -0500

It means Mildew-Fungus Protection or Moisture-Fungus Protection -- or
"preventative" and it's basically an amber/yellow/golden varnish with some
nasty ingredients, like mercury compounds.  (Remember mercurichrome, the
painless iodine?) Basically seals out the flora and includes some micro-weed
killer mixed in.  So, don't eat the stuff or breath it in. (Yeah, and you
radio-fetish folk best not lick or sniff these things.)  Treat it as you
would that contraband bottle of chlordane you kept in the garage for some
future occasion.

It's necessary to scrape or wire brush it away when soldering joints, so be
careful when doing that.  Most of this stuff has remained intact, but can
flake if corrosion manages to develop underneath it.  If necessary, use a
vacuum (with filter bag, not bagless) to clean off any loose coating and
leave the rest of it alone.

Barry

----- Original Message -----
From: "B Riches" <[email protected]>
To: "David Hallam" <[email protected]>; "R-390 List"
<[email protected]>
Sent: Monday, March 22, 2004 8:10 AM
Subject: Re: [R-390] MFP

I think it means that the modules have been fungus proofed.

73,

Bill Riches WA2DVU
Cape May, NJ
  ----- Original Message -----
  From: David Hallam
  To: R-390 List
  Sent: Monday, March 22, 2004 7:48 AM
  Subject: [R-390] MFP

  The modules in my R-390 are marked MFP.  I thought that had something to
do
  with Motorola since Motorola manufactured my receiver.  After reading some
  exchanges here, I am not sure.  What is the significance of the MFP
markings
  on the modules?

  David C. Hallam KC2JD

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