00713nam a2200217Ia 4500003000900000008004100009040001600050080002200066100002800088245006500116250001100181260002700192300001500219650003500234650001900269650002200288650003500310942000700345999001500352952012800367IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a621.396(031)bBAB  aBaban, B. Bernard93656 0aInternational radio tube encyclopaediacBernard  B.  Baban    a3rd ed  aLondonbBernardsc1959  axxxiv,410p  aEncyclopedia-Radio Tubes93657  aNASA Thesaurus  aRadio Electronics  aRadio Tubes Encyclopedia93658  cBK  c1921d1921  00102ddc4070aBANbKODcGENd0000-00-00g44.10l0o621.396(031)/ BABp2113r2021-11-05v44.10w0000-00-00yBKGRs. 44.10