00823nam0-22002771i-450-99000050873040332120090317132655.0000050873FED01000050873(Aleph)000050873FED0100005087320020821d1952----km-y0itay50------baenga-------001yyData and circuits of radio receiver and amplifer valvessecond supplementcompiled and edited by N. S. Markus, J. OtteEindhovenPhilips technical library1952487 p.ill.23 cmSeries on electronic valves2Markus,N. S.Otte,J.ITUNINARICAUNIMARCBK99000050873040332110 E I 6S.I.DINELDINELUNINA