TRANSIENT RESISTANT KEY OPERATED PULSE GENERATING CALLING DEVICE CIRCUIT

摘要

TRANSIENT RESISTANT KEY OPERATED PULSE GENERATING KILLING DEVICE CIRCUIT A protective circuit consisting of two diodes which functions along with other external circuit elemints to provide protection against transients for an integrated circuit utilized to generate dial pulses in an electronic telephone circuit. By means of included diodes, excessive transients are prevented from enterin the integrated circuit internal circuitry and disturbing the memory included therein or other operatonal characteristics.