[ARC5] Crystals in WWII

[robinson at tuberadio.com]

Hi gang,

There was an article in one of the early Electric Radio magazines,
about a 2 person business (I forget who)
that tooled up for a contract making crystals,
having never made them before.

Regards
Ray

> I read it too and echo the comments of the others.  I will add that I
> found
> some comments interesting that had to do with the justification for the US
> moving to crystal control while the enemy did not (except for use in
> standards or in-box calibrators).   There were some real advantages to
> crystal control in a fast moving battlefield or similar tactical situation
> such as a dogfight.  I also found the solution to the so called "aging"
> problem interesting.  It led to how crystals are finished today and
> provided me with a technique for restoring old FT-243 and other WW2 rocks
> for use in my various projects and restorations.
>
> Overall, I found the book sufficiently interesting though one has to wade
> through some boring detail to get at the nuggets.
>
> Dennis AE6C
>
>
> On Thu, Mar 14, 2013 at 6:11 PM, Ray Chase <raydio862 at verizon.net> wrote:
>
>> I have read it and listened to a lecture by the author who is not an
>> engineer or too technically literate.  He researched the history of
>> quartz
>> crystals during WWII and gives some good insight on the problems of
>> supply
>> and manufacture and how they were overcome.  Interesting read but don't
>> expect too much on the technical side.  He includes two pictures of WWII
>> radios; neither was crystal controlled.
>> Ray
>> ----- Original Message ----- From: "Robert Eleazer" <
>> releazer at earthlink.net>
>> To: <arc5 at mailman.qth.net>
>> Sent: Thursday, March 14, 2013 7:55 PM
>> Subject: [ARC5] Crystals in WWII
>>
>>
>>
>>  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
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