00832nam0-22003131i-450-990000023400403321000002340FED01000002340(Aleph)000002340FED0100000234020011111d--------km-y0itay50------baitay-------001yyElectron-tube circuitsSamuel Seely.2. ed.New YorkMcGraw-Hill book company1958XI, 695 p.ill.24 cmElettronica537.5Seely,Samuel1825ITUNINARICAUNIMARCBK99000002340040332113 C 14 1325019FINBC13 C 14 1425145FINBCFINBCElectron-tube circuits106990UNINAING01