Long interval timer circuit

Claim 1

A LONG INTERVAL TIMING CIRCUIT COMPRISING IN COMBINATION: A FREE-RUNNING AND A BI-STABLE TRANSISTOR MULTIVIBRATOR, EACH HAVING TWO STATES, SAID MULTIVIBRATORS HAVING FIRST, SECOND, THIRD AND FOURTH TRANSISTORS OF THE SAME CONDUCTIVITY, EACH HAVING AN EMITTER, COLLECTOR AND BASE ELECTRODE, THE EMITTER ELECTRODE OF THE FIRST, THIRD AND FOURTH TRANSISTOR BEING GROUNDED, A CIRCUIT INCLUDING A FIFTH AND SIXTH TRANSISTOR, THE CONDUCTIVITY OF THE FIFTH TRANSISTOR BEING OPPOSITE TO THE CONDUCTIVITY OF THE OTHER SAID TRANSISTORS, EACH TRANSISTOR HAVING AN EMMITTER, COLLECTOR AND BASE ELECTRODE; THE BASE ELECTRODE OF THE FIFTH TRANSISTOR BEING CONNECTED TO THE EMITTER ELECTRODE OF THE SIXTH TRANSISTOR, MEANS TO GROUND THE COLLECTOR ELECTRODE OF THE FIFTH TRANSISTOR, A FIRST AND SECOND CAPACITOR HAVING THEIR FIRST SIDES CONNECTED INDIVIDUALLY TO THE EMITTER ELECTRODES OF THE FIFTH AND SIXTH TRANSISTOR RESPECTIVELY, WITH THE SECOND SIDE OF THE FIRST CAPACITOR CONNECTED TO THE COLLECTOR ELECTRODE OF THE FIRST TRANSISTOR, AND THE SECOND SIDE OF THE SECOND CAPACITOR CONNECTED TO THE LOAD POTENTIAL OF THE SECOND AND THIRD TRANSISTORS, A FIRST DIODE CONNECTED BETWEEN THE FIRST SIDES OF THE CAPACITORS, WITH THE ANODE AND CATHODE CONNECTED TO THE EMITTER ELECTRODES OF THE FIFTH AND SIXTH TRANSISTORS RESPECTIVELY, A SECOND DIODE, POLED IN THE SAME DIRECTION AS THE FIRST DIODE, CONNECTED TO THE EMITTER ELECTRODE OF THE FIFTH TRANSISTOR AND TO THE BASE ELECTRODE OF THE THIRD TRANSISTOR, A THIRD DIODE WITH THE ANODE CONNECTED TO THE BASE ELECTRODE OF THE SIXTH TRANSISTOR AND THE CATHODE CONNECTED TO THE COLLECTOR ELECTRODE OF THE THIRD TRANSISTOR THROUGH A RESISTOR, MEANS FOR CONNECTING THE BASE ELECTRODE OF THE THIRD AND FOURTH TRANSISTOR TO A SOURCE OF COMMON POTENTIAL, A SEVENTH TRANSISTOR, OF THE SAME CONDUCTIVITY AS THE SECOND TRANSISTOR, HAVING AN EMITTER, COLLECTOR AND BASE ELECTRODE, WITH THE COLLECTOR ELECTRODE CONNECTED TO THE EMITTER ELECTRODE OF THE SECOND TRANSISTOR, THE EMITTER ELECTRODE, THROUGH A DIODE WITH THE CATHODE CONNECTED TO THE EMITTER ELECTRODE OF THE SEVENTH TRANSISTOR AND THE ANODE TO THE BASE ELECTRODE OF THE SECOND TRANSISTOR, TO THE BASE ELECTRODE OF THE SECOND TRANSISTOR, AND THE BASE ELECTRODE, THROUGH A RESISTOR TO THE COLLECTOR ELECTRODE OF THE FOURTH TRANSISTOR, MEANS FOR CONNECTING THE COLLECTOR ELECTRODE OF THE SIXTH TRANSISTOR TO THE LOAD POTENTIAL.