00962    a2200145   4500003000500000005001700005040000900022082001900031100001800050245008800068260002600156300000800182505059200190650003400782Nust20221202182908.0  cNust  a621.381528,BET  aBettridge,B.R  aTransistors and Crystal DiodescWhat They Are and How to USE Them /bB.R Bettridge,  aLondon,bNormanc1954  a71p  aSemiconductors (Page-11), Crystal Diodes And How They Work (Page-14), Transistors And How They Work (Page-20), Germanium Diodes In Tv Circuits (Page-24), Miscellaneous Circuits For Germanium Diodes (Page-28), Transistor Circuitry (Page-33), Practical Radio Circuits For Point Contact Transistors (Page-39), Miscellaneous Point Contact Transistor Circuits (Page-46), Junction Transistor Characteristics (Page-49), Junction Transistor Circuits (Page-52), Testing Of Diodes And Transistors (Page-58), The Transistor And Its Equivalent Network (Page-62), What Does The Future Hold (Page-68).  aTelecommunication Engineering