[ARC5] Crystals in WWII

[Ray Chase]

Hmmm.  I thought crystals were now made from artificially grown material 
like semi-conductors.  Our InfoAge Frequency Control museum room has a 
display salvaged from the closing of Ft. Monmouth that shows this operation. 
Maybe too expensive for small time operations?
Ray
----- Original Message ----- 
From: "D. Platt" <jeepp at comcast.net>
To: <arc5 at mailman.qth.net>
Sent: Friday, March 15, 2013 10:42 AM
Subject: Re: [ARC5] Crystals in WWII


> On 3/14/2013 7:55 PM, Robert Eleazer wrote:
>> Anyone ever hear of this book? Sounds interesting.
>>
>> "Crystal Clear : The Struggle for Reliable Communications Technology in 
>> World War II" by Richard J. Thompson
>>
>> Wayne
>>
> Like many here, I too have and read the book.  I found it quite 
> interesting and historically illuminating.  Its too bad that 99% of the 
> crystal manufacturers listed are long gone.  Its a bit rough getting them 
> made these days, with any economy at all.  Having been to the areas of 
> Brazil where these crystals come from (even today), it was good to have 
> the book to finish the story.  One thing did come to light was the issue 
> of a few of the Signal Corps folks getting into trouble, down there, that 
> may have caused larger problems.  What is also not discussed were certain 
> political issues at the time.  Fortunately, Brazil was a true ally, unlike 
> some others south of the border.  In fact, Brazil was the only South 
> American country to actually send troops to combat areas. There is far 
> more to these stories but not germain to the big picture, here.
>
> Jeep - K3HVG
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