00425nam a2200145Ia 4500003000900000008004100009040001600050080002100066100001300087245009700100260003500197300001200232650001600244650001900260IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a621.385.832bPAR  aParr, G. 4aThe Low voltage Cathoderay TubecG. Parr                                                      aLondonbChapman and Hallc1937  ax,177p.  aElectronics  aNASA Thesaurus