TY - BOOK TI - Bhagaval darsan U1 - 105.4 PY - 1964/// CY - Thiruvananthapuram PB - Kamalalaya Book Depot KW - GeneralINTRODUCTION TO RADIO COMMUNICATION , RESONANT CIRCUITS, NETWORKS AND FILTER CIRCUITS, THEMIONIC TUBES, SEMI CONDUCTORS AND TRANSISTORS , ELECTRON EMISSION, AMPLIFIERS, OSCILLATORS, MODULATION ER -