[FCARC] Fwd: [Amateur-repairs] Quartz crystal production during WWII

[Adam Cately]

 From one of my groups lists - thought y'all might be interested . . .



-------- Forwarded Message --------
Subject: 	[Amateur-repairs] Quartz crystal production during WWII
Date: 	Sun, 31 Jul 2022 04:54:33 -0700
From: 	Mark ~ AE2EA <mark.erdle at gmail.com>
Reply-To: 	Amateur-repairs at groups.io
To: 	Amateur-repairs at groups.io



During WWII the Reeves Sound Laboratory got a contract to make quartz 
crystals for the Signal Corps. Reeves made this video showing, in 
amazing detail, every step in making their quartz crystals, from 
inspecting the incoming raw crystals to shipping the finished crystal in 
its holder. You'll be ready to set up your own quartz crystal factory 
after watching this film. An amazing amount of hand labor was involved 
to produce an accurate frequency reference, and the video highlights the 
contributions of women in wartime manufacturing.

You can watch it here: https://youtu.be/duZlWWwxIPQ

Seems like it was dress up day for the filming, or did they wear 
corsages every day?

Mark
_._,_._,_
------------------------------------------------------------------------
Groups.io Links:

You receive all messages sent to this group.

View/Reply Online (#86050) 
<https://groups.io/g/Amateur-repairs/message/86050> | Reply To Group 
<mailto:Amateur-repairs at groups.io?subject=Re:%20%5BAmateur-repairs%5D%20Quartz%20crystal%20production%20during%20WWII> 
| Reply To Sender 
<mailto:mark.erdle at gmail.com?subject=Private:%20Re:%20%5BAmateur-repairs%5D%20Quartz%20crystal%20production%20during%20WWII> 
| Mute This Topic <https://groups.io/mt/92725554/1174129> | New Topic 
<https://groups.io/g/Amateur-repairs/post>
Your Subscription <https://groups.io/g/Amateur-repairs/editsub/1174129> 
| Contact Group Owner <mailto:Amateur-repairs+owner at groups.io> | 
Unsubscribe 
<https://groups.io/g/Amateur-repairs/leave/4528957/1174129/1896307328/xyzzy> 
[adam_cately at embarqmail.com]

_._,_._,_