{"id":2832,"ia_identifier":"gov.dod.dimoc.39950","programme":"dod","naid":null,"local_identifier":null,"pin":"39950","title":"CHARACTERISTICS OF CRYSTALS","year":1964,"date_raw":"1964-01-01T00:00:00Z","creator":"Department of Defense","description":"Department of Defense PIN 39950 CHARACTERISTICS OF CRYSTALS STRESSES THE IMPORTANCE OF FREQUENCY STABILITY AND INTRODUCES THE CRYSTAL CONTROLLED OSCILLATOR AS A POSSIBLE DEVICE USED TO OBTAIN THIS STABILITY. EXPLAINS THE PIEZOELECTRIC EFFECT OF A CRYSTAL, LISTS TYPES OF CRYSTALS HAVING THE PIEZOELECTRIC EFFECT, AND POINTS OUT THE RELATIONSHIP BETWEEN CRYSTAL THICKNESS AND FREQUENCY. VARIOUS CRYSTAL CUTS ARE EXPLAINED AND SHOWN GRAPHICALLY. THE Q OF THE CRYSTAL CIRCUIT IS EXPLAINED, AND BOTH THE PHYSICAL DIMENSIONS AND ELECTRICAL CHARACTERISTICS OF A TYPICAL CRYSTAL ARE DISCUSSED.","licenseurl":"http://creativecommons.org/publicdomain/zero/1.0/","collections":["FedFlix","usgovfilms","newsandpublicaffairs","fav-808omega","fav-_learn","fav-abigailjoy","fav-avkitty","fav-blakksheepmedia","fav-dena_kopolovich","fav-jodyataylor","fav-mjeffs1963","fav-onesinglecircle","fav-paras_mahajan","fav-retiredscholar","fav-scottlawndart","fav-zach_w499"],"ia_metadata":{"date":"1964-01-01T00:00:00Z","year":1964,"title":"CHARACTERISTICS OF CRYSTALS","creator":"Department of Defense","credits":"Uploaded by Public.Resource.Org","subject":["defenseimagery.mil","public.resource.org"],"collection":["FedFlix","usgovfilms","newsandpublicaffairs","fav-808omega","fav-_learn","fav-abigailjoy","fav-avkitty","fav-blakksheepmedia","fav-dena_kopolovich","fav-jodyataylor","fav-mjeffs1963","fav-onesinglecircle","fav-paras_mahajan","fav-retiredscholar","fav-scottlawndart","fav-zach_w499"],"identifier":"gov.dod.dimoc.39950","licenseurl":"http://creativecommons.org/publicdomain/zero/1.0/","description":"Department of Defense PIN 39950 CHARACTERISTICS OF CRYSTALS STRESSES THE IMPORTANCE OF FREQUENCY STABILITY AND INTRODUCES THE CRYSTAL CONTROLLED OSCILLATOR AS A POSSIBLE DEVICE USED TO OBTAIN THIS STABILITY. EXPLAINS THE PIEZOELECTRIC EFFECT OF A CRYSTAL, LISTS TYPES OF CRYSTALS HAVING THE PIEZOELECTRIC EFFECT, AND POINTS OUT THE RELATIONSHIP BETWEEN CRYSTAL THICKNESS AND FREQUENCY. VARIOUS CRYSTAL CUTS ARE EXPLAINED AND SHOWN GRAPHICALLY. THE Q OF THE CRYSTAL CIRCUIT IS EXPLAINED, AND BOTH THE PHYSICAL DIMENSIONS AND ELECTRICAL CHARACTERISTICS OF A TYPICAL CRYSTAL ARE DISCUSSED."},"status":"us-government-work","reason":"The record names a federal body as the creating agency: Department of Defense. A work prepared by an officer or employee of the United States Government as part of that person's official duties has no US copyright (17 U.S.C. 105; before 1978, section 8 of the 1909 Act).","flags":[],"loaded_at":"2026-09-05 16:13:42.607439+00:00","downloads":738}