The pulse generator at one logic element

Driving hours performed on chips IMS4, IMS8, IMS11 and different from the normal scheme by two features. The first is that the output of the decoder chip K176IEZ, K176IE4 connected ssegmentami-indikatorovcherez transistor switches (circuit K161KN1). This allows you to apply for digital displays voltage 25 V than is provided, the higher the brightness of the glow. In this article, the authors propose two schemes of functional low-frequency generators that have similar technical characteristics and different schematics separate functional units. By repeating designs, you can choose any of the circuits, or a combination of such functional units of these schemes, which best meet the requirements imposed on the generator. Connect mode dial keys dopaivaem current and connected to the output of the three LEDs. It does not work ... I start to understand: the generator outputs the pulses of "dirty" fronts. The proposed indicator notifies the driver about the state of the ignition system of the car. The device is made on the basis of available components, available for beginners repetition hams and practically does not require establishment.