[time-nuts] How quartz crystals are (were) fabricated

[Bob Camp]

Hi

The story of the crystal etching process is true, and Dr. Bottom did play a part in it. He also spent a *lot* of the next decades publicizing all of that. Others who were there at the time had slightly different stories to tell, at least in private.

Bob

On Aug 2, 2013, at 1:10 PM, Pete Lancashire <pete at petelancashire.com> wrote:

> A paper on the effort in WWII  and some of the problems
> 
> ... millions f the unetched units were destroyed...
> 
> http://www.ieee-uffc.org/main/history-bottom.asp
> 
> 
> 
> 
> On Wed, Jul 31, 2013 at 5:59 PM, Alberto di Bene <dibene at usa.net> wrote:
> 
>> A really fascinating story in pictures of the preparation and manufacture
>> of quartz crystals for radio communication.
>> Dating back to 1943... how times have changed...
>> 
>> Copied from another list.
>> 
>> http://archive.org/details/**6101_Crystals_Go_to_War_01_20_**16_21<http://archive.org/details/6101_Crystals_Go_to_War_01_20_16_21>
>> 
>> 73  Alberto  I2PHD
>> 
>> 
>> 
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