Keywords: Xtal-collection.jpg crystal oscillators in electronic equipment Public domain Note the largest component pictured is not a crystal it is an ultrasonic delay line as used in a colour TV I scanned this picture myself Uploader Public Domain en A collection of old electronic xtal x'tal x-tal Crystal components I scanned this picture myself Public domain Note the largest component pictured is not a crystal it is an ultrasonic delay line as used in a colour TV ja 旧型の水晶振動子のコレクション Collecting Crystal oscillators |