Amplifier circuit having separate and independent output and biasing paths

Claim 1

AN AMPLIFIER CIRCUIT OPERATIVE WITH A COMMON LOAD COMPRISING, A PAIR OF TRANSISTORS CONNECTED TO FUNCTION IN A PUSH-PULL MANNER AND EACH INCLUDING BASE, COLLECTOR AND EMITTER ELECTRODES, SAID PAIR OF TRANSISTORS BEING OF THE SAME CONDUCTIVITY TYPE, INPUT CIRCUIT MEANS FOR APPLYING INPUT SIGNALS TO THE BASE ELECTRODES OF EACH OF SAID TRANSISTORS SO THAT SAID TRANSISTORS FUNCTION IN A PUSHPULL MANNER, A BIASING CIRCUIT CONNECTED RESPECTIVELY TO EACH OF SAID TRANSISTORS, EACH BIASING CIRCUIT INCLUDING A SOURCE OF DIRECT POTENTIAL, A DIODE AND AN IMPEDANCE DEVICE OPERATIVELY CONNECTED TO FORWARD BIAS SAID DIODE, SAID SOURCE BEING OPERATIVELY CONNECTED TO THE EMITTER ELECTRODE OF THE RESPECTIVE TRANSISTOR TO SUPPLY BIAS POTENTIAL THERETO, AND AN OUTPUT CIRCUIT RESPECTIVELY CONNECTED TO EACH OF SAID TRANSISTORS TO DRIVE SAID COMMON LOAD, SAID COLLECTOR ELECTRODES OF SAID PAIR OF TRANSISTORS DIRECTLY CONNECTED RESPECTIVELY TO OPPOSITE ENDS OF SAID LOAD, EACH OUTPUT CIRCUIT INCLUDING ONE OF SAID SEPARATE SOURCES OF DIRECT POTENTIAL, THE EMITTER-COLLECTOR CIRCUIT OF THE RESPECTIVE TRANSISTOR AND SAID LOAD AND OPERATIVE TO FUNCTION INDEPENDENTLY OF SAID BIASING CIRCUITS, WITH CURRENT BEING SUPPLIED THROUGH SAID LOAD IN OPPOSITE DIRECTIONS FROM EACH OF SAID OUTPUT CIRCUITS RESPECTIVELY.