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Title: Experimental secondary emission tube designed by Dr van den [Go to resource]
Description: Experimental secondary emission tube designed by Dr van den Bosch of Vacuum Physical Laboratories License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: Secondary emission tube Temporal: 1945-48 Source: Science Museum Creator: 20th Century Electronics Ltd Identifier: 2003-92 Go to resource More Like this...
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