00357nam a2200109Ia 450000500170000000800410001708200170005810000210007524500600009626000640015665000270022020251003153630.0240817s9999    xx            000 0 und d  a621.3 R141,t  aRamamoorthy, M . 3aAn Interoduction To Thyristors And Their Applications .  c, 1977a New Delhib Affiliated East - West Press Pvt Ltd .  aElectrical Engineering