History of Cathode ray

	Revision 2 . . October 30, 2001 10:44 am by (logged).253.39.xxx
	Revision 1 . . October 30, 2001 10:44 am by (logged).253.39.xxx

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Difference (from prior major revision) (no other diffs)

Changed: 1c1

An old name for a beam of electrons.

An old name for a beam of electrons. So called becuase electrons are emitted from the cathode of a vacuum tube device.