[time-nuts] Vintage Quartz Crystal Manufacturing

[Poul-Henning Kamp]

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In message <BAY180-W7090896641BC03A9F3E8E894CB0 at phx.gbl>, Bryan _ writes:

>May find this old video interesting.
>https://youtu.be/Iy23Us3nrX8

There are some very informative articles about quartz crystals in
Bell Systems Technical Journal (on archive.org for instance)

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