Pulse width stabilized transistor multivibrator

Claim 1

IN A TRANSISTORIZED MULTIVIBRATOR CIRCUIT INCLUDING A TIMING CAPACITOR, THE COMBINATION COMPRISING: A D.C. SOURCE; A FIRST TRANSISTOR HAVING A COLLECTOR; A RESISTOR HAVING ONE END CONNECTED TO SAID D.C. SOURCE AND THE OTHER END CONNECTED TO SAID COLLECTOR; MEANS IN THE CHARGE-DISCHARGE PATH OF SAID CAPACITOR ENSURING THAT SAID CAPACITOR CONSISTENTLY CHARGES LINEARLY TO A PREDETERMINED CHARGE LEVEL AND DISCHARGES TO A PREDETERMINED DISCHARGE LEVEL, SAID MEANS INCLUDING A DOUBLE BACK-TO-BACK ZENER DIODE HAVING ONE TERMINAL CONNECTED TO THE JUNCTURE OF SAID COLLECTOR, SAID OTHER END OF SAID RESISTOR AND ONE TERMINAL OF SAID CAPACITOR, AND HAVING THE OTHER TERMINAL CONNECTED TO GROUND, SO THAT SAID DOUBLE BACK-TOBACK ZENER DIODE CONDUCTS AT FIXED AND EQUAL POSITIVE AND NEGATIVE POTENTIAL LEVELS TO MAINTAIN THE CHARGE AND DISCHARGE LEVELS INDEPENDENTLY OF NONLINEAR CURRENT CHANGES IN SAID FIRST TRANSISTOR; MEANS CONNECTED TO THE OTHER TERMINAL OF SAID CAPACITOR ENSURING THAT SAID CAPACITOR CONSISTENTLY STARTS TO DISCHARGE AT THE SAME CHARGE LEVEL; AND A SECOND TRANSISTOR HAVING A BASE, SAID BASE BEING CONNECTED TO THE LAST MENTIONED MEANS TO DISCHARGE SAID CAPACITOR ABRUPTLY WHEN SAID DISCHARGE PATH IS CLOSED BY SAID LAST MENTIONED MEANS.