[ARC5] Quartz Crystal Manufacture

[Robert Eleazer]

See:   https://archive.org/details/6101_Crystals_Go_to_War_01_20_16_21

and  https://archive.org/details/bstj19-4-516

and https://archive.org/details/bstj22-2-178

and https://archive.org/details/bstj23-2-178

Wayne'
WB5WSV

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