Hello from Yokosuka, Japan!
IT2 John Mackey
-- Original Message --
Received: Thu, 20 Aug 2009 05:48:02 PM PDT
From: Glenn Little WB4UIV
>
> Was in the US Navy for 22 years.
>
> 73
> Glenn
> WB4UIV
>
I have never worked for a radio company.
Was in the US Navy for 22 years.
73
Glenn
WB4UIV
At 08:20 AM 8/20/2009, you wrote:
>I remember going to the Glenayre paging company for training years ago.
>I saw that the factory had stripped off the gold plate on all the PA
>transistors before attaching
I remember going to the Glenayre paging company for training years ago.
I saw that the factory had stripped off the gold plate on all the PA
transistors before attaching them to the board. This was critical for a
PA that stayed key-down for hours, or even days. The spare part
transistors wer
-Builder@yahoogroups.com
Subject: [Repeater-Builder] Need a TLD-2601A PA
Our club's MSR-2000 repeater recently "ate" it's PA, a TLD-2601A.
Actually it went intermittent on us and several folks have gone over it
with the magnifying glass and reflowed most of the major solder
Desolder the flat gold plated transistor leads.
Clean the black residue at the gold - tin interface.
Resolder the transistor leads after removing any gold left by tinning
the lead and removing the solder a few times.
Gold embrittlement is very common.
73
Glenn
WB4UIV
At 10:25 PM 8/19/2009, you
Our club's MSR-2000 repeater recently "ate" it's PA, a TLD-2601A.
Actually it went intermittent on us and several folks have gone over it
with the magnifying glass and reflowed most of the major solder joints
to no avail.
That's a low split, 100 watt, continuous duty PA. If anyone has one
a
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