[ARC5] Yamato

[Sandy]

The hazmat people etc.  go absolutely "bonkers" even over very small test 
samples that are encapsulated these days!  An engineering friend of mine 
maintained a trolley line 600 volt DC system for many years that used 
"Ignitron" tubes as rectifiers (the successor to the old glass envelope 
mercury pool rectifiers).  Those tubes have a lot of metallic mercury in 
them.  Mercury  AND  lead drive the environmentalists absolutely "APE"!!  He 
never had any ill effects.  Unless you inhale the vapor or swallow the 
damned stuff it basically won't hurt you!

There is WAY too much caution about infinitesimal bits of things that "may" 
be harmful!

73
Sandy W5TVW

-----Original Message----- 
From: J. Forster
Sent: Friday, March 23, 2012 3:08 PM
To: Bill Fuqua
Cc: ARC5 at mailman.qth.net
Subject: Re: [ARC5] Yamato

A couple of suggestions:

Put it in a Ziplock or other plastic bag and tape the bag closed to
contain any flakes. Don't handle more than absolutely necessary and
preferably wear a disposable dust mask and gloves as you do.

If you have a trustworthy friend at your school or elsewhere in the health
and safety office, get him to measure the thing very "off the record" to
find out how hot it really is.

Keep it away from homeland security/first responder types as they may
freak out. I lost a WS 58 because of radium dials that way. The low level
guys can't distinguish between a real threat and something benign. There
was recently a local HazMat incident over a few drops of mercury at a high
school that created a media frenzy. And, publicity brings public support
for more and newer toys.

FWIW,

-John

==============




>     Speaking of WWII Japanese technology.
>     I have an WWII Japanese Transceiver. A field  leather cased belt worn
> device that is
> very simple. One dual triode, superregen. Have no accessories (key built
> in)  but it does have the
> frequency charts and schematics. The main problem with it is that the it
> is
> very radio active.
> They painted all the knobs, panel and meter faces with radium paint. The
> phosphor is
> dissipated but the radium is still hot and the paint easily peals off the
> panel.
> The aluminum case does not attenuate this radiation a bit. So, what do you
> do?
> Right now it is stored in a far corner of the basement in very safe
> location.
>     If I should sell it, I expect it would set off radiation alarms at the
> airport terminals or
> post office.
> 73
> Bill wa4lav
>
>
> At 01:15 PM 3/23/2012 -0400, Kenneth G. Gordon wrote:
>>On 23 Mar 2012 at 12:30, Todd, KA1KAQ wrote:
>>
>> > Truly impressive and fascinating engineering & technology for the day,
>>
>>Well, from what I have seen, Japanese technology was what I would
>>consider a very curious mix of up-to-date, and very outdated technology.
>> For
>>instance, one of the links provided on this list some time ago lead to a
>> U.S.
>>Army intelligence report on Japanese radar. Information included
>> mentioned
>>that their inter-deck cabling was extremely crude with no protection for
>> that
>>cabling, it simply being fed through holes in the deck. No "grommets" or
>>strain reliefs. Some of the cabling was in quite large bundles too.
>>
>> > Not terribly practical in time of war, though. The materials, man
>> > hours, and years of waiting that went into the Yamato only to have her
>> > sitting on the bottom within a few hours of being attacked could've
>> > been put to far better use.
>>
>>Agreed. Germany did much the same thing. All of that worked to our
>> benefit
>>though.
>>
>> > There was a sister ship to the Yamato too, sent to the bottom in one
>> > of the post war atomic tests, IIRC. Can't recall the name.
>>
>>Wasn't that the "Musashi"?
>>
>>Ken W7EKB
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