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Re: Damaged RF Power module



I have repaired a couple of these (everyone gets lucky once in a while).  If
you need to replace a transistor you had best replace the whole module, but
first gingerly remove the cover and look for any open or cold joints.  They
are tough to solder, because of the excellant heat dissipation, but it can
be a cheap fix!

I'm under the impression BeO heatsinks are not commonly used today due to
the liability.  Still it is best to be cautious when dealing with such
materials  You don't want to chip, crush, drill, machine or do anything else
that could allow particles into your lungs.  I try to make sure I expose
myself to as few solder fumes as possible as well!

73,
Joe
ka0yos@amsat.org

----- Original Message -----
From: "Nicolaus Sallay" <nsallay@internext.com.br>
To: <amsat-bb@AMSAT.Org>
Sent: Saturday, February 24, 2001 7:54 AM
Subject: [amsat-bb] Damaged RF Power module


> Hello,
>
> I have been informed about the possibility to repair RF power modules.
> I have a damaged UHF power module and I'm interested to rebuild this
> part. Does anyone know a company who does this work and how are
> the results,is it a reliable job, does anyone have a mail address to help
> in the inquiry. Any information is welcome
>
> Thank you for all possible replies
> Nicolaus Sallay - PP8DA
> E-mail : nsallay@internext.com.br
>
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