Electronic timing apparatus with precise starting point for selected interval

Claim 1

AN ELECTRONIC CIRCUIT COMPRISING AN N-P-N TRANSISTOR HAVING A BASE ELECTRODE, A COLLECTOR ELECTRODE AND AN EMITTER ELECTRODE, A P-N-P TRANSISTOR HAVING A BASE ELECTRODE, A COLLECTOR ELECTRODE AND AN EMITTER ELECTRODE, A SOURCE OF POTENTIAL HAVING FIRST AND SECOND TERMINALS RESPECTIVELY AT FIRST AND SECOND POTENTIALS, A FIRST RESISTOR COUPLING THE COLLECTOR ELECTRODE OF SAID N-P-N TRANSISTOR TO SAID FIRST TERMINAL, A SECOND RESISTOR COUPLING THE EMITTER ELECTRODE OF SAID N-P-N TRANSISTOR TO SAID SECOND TERMINAL, A THIRD RESISTOR COUPLING THE EMITTER ELECTRODE OF SAID P-N-P TRANSISTOR TO SAID FIRST TERMINAL, A FOURTH RESISTOR COUPLING THE EMITTER ELECTRODE OF SAID N-P-N TRANSISTOR TO THE EMITTER OF SAID P-N-P TRANSISTOR, A UTILIZATION CIRCUIT COUPLING THE COLLECTOR ELECTRODE OF SAID P-N-P TRANSISTOR TO SAID SECOND TERMINAL, FIFTH AND SIXTH SERIALLY DISPOSED RESISTORS IN PARALLEL WITH SAID UTILIZATION CIRCUIT, A FIRST CAPACITOR IN PARALLEL WITH SAID UTILIZATION CIRCUIT, A SEVENTH RESISTOR COUPLING THE BASE ELECTRODE OF SAID N-P-N TRANSISTOR TO SAID FIRST TERMINAL, A SECOND CAPACITOR COUPLING THE JUNCTION OF SAID FIFTH AND SIXTH RESISTORS TO THE BASE ELECTRODE OF SAID N-P-N TRANSISTOR, A DIODE HAVING ITS CATHODE COUPLED TO THE BASE ELECTRODE OF SAID N-P-N TRANSISTOR AND ITS ANODE COUPLED TO THE COLLECTOR ELECTRODE OF SAID P-N-P TRANSISTOR, AND MEANS FOR COUPLING THE COLLECTOR ELECTRODE OF SAID N-P-N TRANSISTOR TO THE BASE ELECTRODE OF SAID P-N-P TRANSISTOR.