A. c. coupled pulse amplifier with floating input and grounded output

Claim 1

A WIDE-BAND LOW PASS PULSE AMPLIFIER HAVING ONLY ELECTROMAGNETIC COUPLING BETWEEN THE INPUT AND OUTPUT THEREOF COMPRISING: AN OUTPUT CIRCUIT INCLUDING AT LEAST FIRST AND SECOND INPUT TERMINALS AND AT LEAST A FIRST AND A SECOND SWITCH MEANS, FIRST AND SECOND TRANSFORMERS EACH HAVING A PRIMARY WINDING AND A SECONDARY WINDING, MEANS COUPLING AT LEAST A PORTION OF THE PRIMARY WINDING OF SAID FIRST TRANSFORMER IN SERIES WITH AT LEAST A PORTION OF THE SECONDARY WINDING OF SAID SECOND TRANSFORMER, AND IN SERIES WITH SAID FIRST SWITCH MEANS AND TO SAID FIRST AND SECOND INPUT TERMINALS, SAID SECOND SWITCH MEANS OF SAID INPUT CIRCUIT BEING CONNECTED ACROSS SAID FIRST AND SECOND INPUT TERMINALS, A FIRST AMPLIFYING MEANS, A FIRST IMPEDANCE MEANS, A SECOND AMPLIFYING MEANS HAVING AT LEAST ONE OUTPUT AND ONE INPUT TERMINAL, MEANS COUPLING SAID FIRST AMPLIFYING MEANS TO AT LEAST A PORTION OF THE SECONDARY WINDING OF SAID FIRST TRANSFORMER, AND THROUGH SAID FIRST IMPEDANCE MEANS TO AN INPUT TERMINAL OF SAID SECOND AMPLIFIER, THIRD SWITCH MEANS, MEANS COUPLING AN OUTPUT TERMINAL OF SAID SECOND AMPLIFIER IN SERIES WITH THE PRIMARY WINDING OF SAID SECOND TRANSFORMER, SAID THIRD SWITCH MEANS AND A REFERENCE TERMINAL, SAID OUTPUT TERMINAL OF SAID SECOND AMPLIFIER AND SAID REFERENCE TERMINAL SERVING AS THE OUTPUT TERMINALS OF SAID PULSE AMPLIFIER, FOURTH SWITCH MEANS COUPLED FROM AN OUTPUT TERMINAL TO AN INPUT TERMINAL OF SAID SECOND AMPLIFIER, A VOLTAGE LIMITER CONNECTED FROM AN OUTPUT TERMINAL TO AN INPUT TERMINAL OF SAID SECOND AMPLIFIER, AND MEANS COUPLED WITH SAID SWITCH MEANS FOR CONTROLLING THE OPERATION THEREOF TO ESTABLISH VOLTAGE REFERENCES WITHIN SAID PULSE AMPLIFIER, TO CAUSE AMPLIFICATION OF A PULSE SIGNAL, AND TO CAUSE DISCHARGE OF ANY BUILTUP EXCITATION CURRENTS.