Ron, you're 100% correct - nothing kills electronics like dust. I've been
keeping my B Line and my newer radios clean by covering them and opening them
up to clean them every once in a while as well. Happy New Year and Happy
QSOing in 2010 to my fellow Drake lovers!
73, Jude WD9FUM
> From: drakelist-requ...@zerobeat.net
> Subject: Drakelist Digest, Vol 18, Issue 30
> To: drakelist@zerobeat.net
> Date: Sat, 26 Dec 2009 12:00:02 -0500
>
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> Today's Topics:
>
> 1. L4B PLATE CURRENT FAILURE (john_hud...@oes.ca.gov)
> 2. Observations on chassis discoloration and corrosion (Ron)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 25 Dec 2009 22:50:56 -0800
> From: john_hud...@oes.ca.gov
> Subject: [Drakelist] L4B PLATE CURRENT FAILURE
> To: Drakelist@zerobeat.net
> Message-ID:
> <of41713ce2.2ef94f4a-on88257698.0024e2c8-88257698.0025a...@oes.ca.gov>
> Content-Type: text/plain; charset=US-ASCII
>
>
> While enjoying a wonderful QSO on 40 meters running my L4B at full power, I
> noticed what appeared to be a "flame out" of a component in the power
> supply then noticed the plate current meter was no longer showing movement.
> However, my power output was not effected but I immediately shut the unit
> down and opened the schematic. My guess would be the 7K resistor but wanted
> to throw it out on the list to get an opinion. I plan to open the unit up
> tomorrow, hopefully it's only a resistor and nothing more.
>
> Any thoughts?
>
>
> Thanks,
>
> John, WA6HYQ
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 26 Dec 2009 05:59:12 -0800 (PST)
> From: Ron <wd8...@yahoo.com>
> Subject: [Drakelist] Observations on chassis discoloration and
> corrosion
> To: drakelist@zerobeat.net
> Message-ID: <125569.85938...@web54409.mail.re2.yahoo.com>
> Content-Type: text/plain; charset=us-ascii
>
> I have had a few Drakes through my shack over the years and have noticed
> something I would like to bring to the collecting community that I have not
> seen discussed before.
>
> The Drakes that I have had with really good and or pristine chassis, were
> typically from (when I could follow it back) owners who used radio covers on
> their rigs. There has also been generally, a direct correlation to the amount
> of dust seen on the chassis and the amount of discoloration and corrosion.
> Also, the bottoms of chassis tend to be much better condition than the tops.
>
> So here are my thoughts. Keep the dust off the chassis as it can and does
> hold moisture. Moisture in turn is a catalyst for corrosion (discoloration
> being simple oxidation, is a very mild form of corrosion).
>
> I sold my TR3 a few years back. It was one of the best TR3 chassis I have
> ever seen. Not just because it was mine, hi :-) The first owner had it
> covered when not in use. I too followed his actions.
>
> Don't take this the wrong way, storage in a damp basement under a radio cover
> is NOT good. OTOH keeping a rig in a reasonable environment with a radio
> cover when not in use is cheap insurance.
>
> I keep all my rigs covered when not in use. Not anything fancy, just some
> material stitched up to form a "box" cover.
>
> Thoughts, comments?
>
> 73,
> Ron WD8SBB
>
>
>
>
>
>
> ------------------------------
>
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>
> End of Drakelist Digest, Vol 18, Issue 30
> *****************************************
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