00804nam0 2200253 450 00001162920180618141339.020080521d1963----km-y0itay50------baengGBy-------001yyMicrowave tubes and semiconductor devicesG. D. Sims and I. M. StephensonLondonBlackie and sonc1963388 p.ill.25 cmElectronic user series2001Electronic user series621.38119Sims,Geoffrey Donald631306Stephenson,Ian Meredith27135ITUNIPARTHENOPE20080521RICAUNIMARC000011629621.381/11116264PISTMicrowave tubes and semiconductor devices1204325UNIPARTHENOPE