Phase sensitive transistor discriminator and high gain transistor amplifier

Claim 1

CONTROL APPARATUS ADAPTABLE FOR ENERGIZING ONE OR A NUMBER OF REMOTE SLAVE AMPLIFIERS IN RESPONSE TO A CONDITION, SAID REMOTE AMPLIFIERS BEING OF THE COMPOSITE TRANSISTOR-AMPLIFIER TYPE IN WHICH FIRST, SECOND AND THIRD TRANSISTORS EACH HAVE EMITTER, BASE AND COLLECTOR ELECTRODES, THE FIRST AND SECOND OF SAID TRANSISTORS BEING OF ONE CONDUCTIVITY TYPE, SAID THIRD TRANSISTOR BEING OF THE OPPOSITE CONDUCTIVITY TYPE, OUTPUT MEANS DIRECTLY CONNECTING TOGETHER THE COLLECTOR ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS, SAID OUTPUT MEANS ALSO BEING CONNECTED TO THE EMITTER OF SAID SECOND TRANSISTOR, MEANS CONNECTING THE EMITTER OF SAID FIRST AND THIRD TRANSISTOR TO THE BASE OF SAID SECOND TRANSISTOR; SAID CONTROL APPARATUS COMPRISING A PHASE DISCRIMINATOR CIRCUIT INCLUDING A FOURTH NORMALLY CONDUCTIVE TRANSISTOR AMPLIFIER WHICH IS CONNECTED IN CIRCUIT WITH TWO IDENTICAL IMPEDANCE NETWORKS AND A SOURCE OF PULSATING DIRECT CURRENT VOLTAGE, WHICH VOLTAGE IS OBTAINED BY FULL-WAVE RECTIFICATION OF AN ALTERNATING CURRENT VOLTAGE, THE NORMAL TRANSISTOR CURRENT BEING MODIFIED BY A CONDITION RESPONSIVE ALTERNATING CURRENT SIGNAL CONNECTED TO THE INPUT OF SAID TRANSISTOR, THE TRANSISTOR CURRENT FROM THE SOURCE BEING DELIVERED THROUGH ONE IMPEDANCE NETWORK DURING ONE HALF-CYCLE OF THE RECTIFIED ALTERNATING CURRENT VOLTAGE AND THROUGH THE OTHER