Ref="U2" pin="2"/> 2.54mm TO-220F-4, Vertical, RM 1.27mm, Multiwatt-7, staggered. HC-50 http://www.crovencrystals.com/croven_pdf/HC-50_Crystal_Holder_Rev_00.pdf Crystal THT HC-18/U, http://5hertz.com/pdfs/04404_D.pdf Crystal THT. New Pull Request
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