Diode input nor circuit including positive feedback

Claim 1

A TRANSISTOR TRIGGER CIRCUIT COMPRISING A FIRST TRANSISTOR HAVING AN EMITTER, COLLECTOR AND BASE, A FIRST RESISTOR HAVING ONE END COUPLED TO SAID FIRST TRANSISTOR EMITTER, A SECOND RESISTOR HAVING ONE END COUPLED TO SAID FIRST TRANSISTOR BASE, A SIGNAL INPUT TERMINAL, AN INPUT DIODE DIRECTLY CONNECTED BETWEEN SAID INPUT TERMINAL AND SAID FIRST TRANSISTOR EMITTER, A SECOND TRANSISTOR HAVING AN EMITTER, COLLECTOR AND BASE, MEANS INCLUDING A COUPLING DIODE COUPLING SAID FIRST TRANSISTOR COLLECTOR TO SAID SECOND TRANSISTOR BASE, MEANS TO PREVENT SAID SECOND TRANSISTOR FROM SATURATION INCLUDING A DIODE CONNECTED BETWEEN SAID SEOCND TRANSISTOR COLLECTOR AND SAID COUPLING DIODE, A THIRD RESISTOR CONNECTED BETWEEN SAID SECOND TRANSISTOR COLLECTOR AND THE OTHER END OF SAID FIRST RESISTOR, MEANS FOR APPLYING OPERATING POTENTIAL TO SAID FIRST AND SECOND RESISTOR OTHER ENDS AND TO SAID SECOND TRANSISTOR COLLECTOR, AND MEANS FOR CLAMPING SAID OUTPUT TERMINAL TO A DESIRED POTENTIAL VALUE IN THE ABSENCE OF AN OUTPUT FROM SAID COLLECTOR.