2530-12-148-4431

6625-15-113-3106 6625151133106 151133106 is an electrically operated instrument which has a marked scale or digital readout display, but the unit of measurement is not given. may indicate electrical or nonelectrical effects but is primarily not a current detecting device; therefore, excludes galvanometer. for instruments whose unit of measurement is not covered by a more specific item, see meter, special scale.

5910-00-160-1016 5910001601016 001601016

5310-21-113-3106 5310211133106 211133106

7610-15-160-1016 7610151601016 151601016 PUBBLICAZIONE

5960-01-160-1016 5960011601016 011601016 is an inclosure, including two or more electrodes, in which a flow of electrons may occur through a vacuum or a contained gas. the electronic conduction takes place either by means of electrons emitted from a cathode or by ionization of the contained gas. includes phototubes (photoemissive type only), geiger-mueller tubes, traveling wave tubes, cathode ray tubes and microwave tubes (klystron, magnetron, or the like). excludes items whose primary purpose is to produce light energy. also excludes photoelectric cell; and semiconductor device (as modified).